81973944

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:331

約数の個数: 160

約数和(自身を含む): 254913120

約数和(自身を除く): 172939176

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 37, 39, 52, 54, 72, 74, 78, 81, 104, 108, 111, 117, 148, 156, 162, 216, 222, 234, 263, 296, 312, 324, 333, 351, 444, 468, 481, 526, 648, 666, 702, 789, 888, 936, 962, 999, 1052, 1053, 1332, 1404, 1443, 1578, 1924, 1998, 2104, 2106, 2367, 2664, 2808, 2886, 2997, 3156, 3419, 3848, 3996, 4212, 4329, 4734, 5772, 5994, 6312, 6838, 7101, 7992, 8424, 8658, 9468, 9731, 10257, 11544, 11988, 12987, 13676, 14202, 17316, 18936, 19462, 20514, 21303, 23976, 25974, 27352, 28404, 29193, 30771, 34632, 38924, 38961, 41028, 42606, 51948, 56808, 58386, 61542, 77848, 77922, 82056, 85212, 87579, 92313, 103896, 116772, 123084, 126503, 155844, 170424, 175158, 184626, 233544, 246168, 253006, 262737, 276939, 311688, 350316, 369252, 379509, 506012, 525474, 553878, 700632, 738504, 759018, 788211, 1012024, 1050948, 1107756, 1138527, 1518036, 1576422, 2101896, 2215512, 2277054, 3036072, 3152844, 3415581, 4554108, 6305688, 6831162, 9108216, 10246743, 13662324, 20493486, 27324648, 40986972, 81973944]

約数ペア:

[(1, 81973944), (2, 40986972), (3, 27324648), (4, 20493486), (6, 13662324), (8, 10246743), (9, 9108216), (12, 6831162), (13, 6305688), (18, 4554108), (24, 3415581), (26, 3152844), (27, 3036072), (36, 2277054), (37, 2215512), (39, 2101896), (52, 1576422), (54, 1518036), (72, 1138527), (74, 1107756), (78, 1050948), (81, 1012024), (104, 788211), (108, 759018), (111, 738504), (117, 700632), (148, 553878), (156, 525474), (162, 506012), (216, 379509), (222, 369252), (234, 350316), (263, 311688), (296, 276939), (312, 262737), (324, 253006), (333, 246168), (351, 233544), (444, 184626), (468, 175158), (481, 170424), (526, 155844), (648, 126503), (666, 123084), (702, 116772), (789, 103896), (888, 92313), (936, 87579), (962, 85212), (999, 82056), (1052, 77922), (1053, 77848), (1332, 61542), (1404, 58386), (1443, 56808), (1578, 51948), (1924, 42606), (1998, 41028), (2104, 38961), (2106, 38924), (2367, 34632), (2664, 30771), (2808, 29193), (2886, 28404), (2997, 27352), (3156, 25974), (3419, 23976), (3848, 21303), (3996, 20514), (4212, 19462), (4329, 18936), (4734, 17316), (5772, 14202), (5994, 13676), (6312, 12987), (6838, 11988), (7101, 11544), (7992, 10257), (8424, 9731), (8658, 9468)]