18987110532

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{367}}^1$

素因数の和:640

約数の個数: 240

約数和(自身を含む): 54668984832

約数和(自身を除く): 35681874300

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 71, 78, 81, 108, 117, 142, 156, 162, 173, 213, 234, 284, 324, 346, 351, 367, 426, 468, 519, 639, 692, 702, 734, 852, 923, 1038, 1053, 1101, 1278, 1404, 1468, 1557, 1846, 1917, 2076, 2106, 2202, 2249, 2556, 2769, 3114, 3303, 3692, 3834, 4212, 4404, 4498, 4671, 4771, 5538, 5751, 6228, 6606, 6747, 7668, 8307, 8996, 9342, 9542, 9909, 11076, 11502, 12283, 13212, 13494, 14013, 14313, 16614, 18684, 19084, 19818, 20241, 23004, 24566, 24921, 26057, 26988, 28026, 28626, 29727, 33228, 36849, 39636, 40482, 42939, 49132, 49842, 52114, 56052, 57252, 59454, 60723, 63491, 73698, 74763, 78171, 80964, 85878, 99684, 104228, 110547, 118908, 121446, 126982, 128817, 147396, 149526, 156342, 159679, 171756, 182169, 190473, 221094, 234513, 242892, 253964, 257634, 299052, 312684, 319358, 331641, 338741, 364338, 380946, 386451, 442188, 469026, 479037, 515268, 571419, 638716, 663282, 677482, 703539, 728676, 761892, 772902, 825383, 938052, 958074, 994923, 1016223, 1142838, 1326564, 1354964, 1407078, 1437111, 1545804, 1650766, 1714257, 1916148, 1989846, 2032446, 2110617, 2285676, 2476149, 2814156, 2874222, 3048669, 3301532, 3428514, 3979692, 4064892, 4221234, 4311333, 4507861, 4952298, 5142771, 5748444, 6097338, 6857028, 7428447, 8442468, 8622666, 9015722, 9146007, 9904596, 10285542, 12194676, 12933999, 13523583, 14856894, 17245332, 18031444, 18292014, 20571084, 22285341, 25867998, 27047166, 27438021, 29713788, 36584028, 40570749, 44570682, 51735996, 54094332, 54876042, 58602193, 66856023, 81141498, 89141364, 109752084, 117204386, 121712247, 133712046, 162282996, 175806579, 234408772, 243424494, 267424092, 351613158, 365136741, 486848988, 527419737, 703226316, 730273482, 1054839474, 1460546964, 1582259211, 2109678948, 3164518422, 4746777633, 6329036844, 9493555266, 18987110532]

約数ペア:

[(1, 18987110532), (2, 9493555266), (3, 6329036844), (4, 4746777633), (6, 3164518422), (9, 2109678948), (12, 1582259211), (13, 1460546964), (18, 1054839474), (26, 730273482), (27, 703226316), (36, 527419737), (39, 486848988), (52, 365136741), (54, 351613158), (71, 267424092), (78, 243424494), (81, 234408772), (108, 175806579), (117, 162282996), (142, 133712046), (156, 121712247), (162, 117204386), (173, 109752084), (213, 89141364), (234, 81141498), (284, 66856023), (324, 58602193), (346, 54876042), (351, 54094332), (367, 51735996), (426, 44570682), (468, 40570749), (519, 36584028), (639, 29713788), (692, 27438021), (702, 27047166), (734, 25867998), (852, 22285341), (923, 20571084), (1038, 18292014), (1053, 18031444), (1101, 17245332), (1278, 14856894), (1404, 13523583), (1468, 12933999), (1557, 12194676), (1846, 10285542), (1917, 9904596), (2076, 9146007), (2106, 9015722), (2202, 8622666), (2249, 8442468), (2556, 7428447), (2769, 6857028), (3114, 6097338), (3303, 5748444), (3692, 5142771), (3834, 4952298), (4212, 4507861), (4404, 4311333), (4498, 4221234), (4671, 4064892), (4771, 3979692), (5538, 3428514), (5751, 3301532), (6228, 3048669), (6606, 2874222), (6747, 2814156), (7668, 2476149), (8307, 2285676), (8996, 2110617), (9342, 2032446), (9542, 1989846), (9909, 1916148), (11076, 1714257), (11502, 1650766), (12283, 1545804), (13212, 1437111), (13494, 1407078), (14013, 1354964), (14313, 1326564), (16614, 1142838), (18684, 1016223), (19084, 994923), (19818, 958074), (20241, 938052), (23004, 825383), (24566, 772902), (24921, 761892), (26057, 728676), (26988, 703539), (28026, 677482), (28626, 663282), (29727, 638716), (33228, 571419), (36849, 515268), (39636, 479037), (40482, 469026), (42939, 442188), (49132, 386451), (49842, 380946), (52114, 364338), (56052, 338741), (57252, 331641), (59454, 319358), (60723, 312684), (63491, 299052), (73698, 257634), (74763, 253964), (78171, 242892), (80964, 234513), (85878, 221094), (99684, 190473), (104228, 182169), (110547, 171756), (118908, 159679), (121446, 156342), (126982, 149526), (128817, 147396)]