257531508

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:215

約数の個数: 192

約数和(自身を含む): 762173440

約数和(自身を除く): 504641932

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 31, 36, 39, 52, 54, 61, 62, 78, 93, 97, 108, 117, 122, 124, 156, 183, 186, 194, 234, 244, 279, 291, 351, 366, 372, 388, 403, 468, 549, 558, 582, 702, 732, 793, 806, 837, 873, 1098, 1116, 1164, 1209, 1261, 1404, 1586, 1612, 1647, 1674, 1746, 1891, 2196, 2379, 2418, 2522, 2619, 3007, 3172, 3294, 3348, 3492, 3627, 3782, 3783, 4758, 4836, 5044, 5238, 5673, 5917, 6014, 6588, 7137, 7254, 7564, 7566, 9021, 9516, 10476, 10881, 11346, 11349, 11834, 12028, 14274, 14508, 15132, 17019, 17751, 18042, 21411, 21762, 22692, 22698, 23668, 24583, 27063, 28548, 34038, 34047, 35502, 36084, 39091, 42822, 43524, 45396, 49166, 51057, 53253, 54126, 68076, 68094, 71004, 73749, 76921, 78182, 81189, 85644, 98332, 102114, 106506, 108252, 117273, 136188, 147498, 153842, 156364, 159759, 162378, 183427, 204228, 213012, 221247, 230763, 234546, 294996, 307684, 319518, 324756, 351819, 366854, 442494, 461526, 469092, 550281, 639036, 663741, 692289, 703638, 733708, 884988, 923052, 1055457, 1100562, 1327482, 1384578, 1407276, 1650843, 2076867, 2110914, 2201124, 2384551, 2654964, 2769156, 3301686, 4153734, 4221828, 4769102, 4952529, 6603372, 7153653, 8307468, 9538204, 9905058, 14307306, 19810116, 21460959, 28614612, 42921918, 64382877, 85843836, 128765754, 257531508]

約数ペア:

[(1, 257531508), (2, 128765754), (3, 85843836), (4, 64382877), (6, 42921918), (9, 28614612), (12, 21460959), (13, 19810116), (18, 14307306), (26, 9905058), (27, 9538204), (31, 8307468), (36, 7153653), (39, 6603372), (52, 4952529), (54, 4769102), (61, 4221828), (62, 4153734), (78, 3301686), (93, 2769156), (97, 2654964), (108, 2384551), (117, 2201124), (122, 2110914), (124, 2076867), (156, 1650843), (183, 1407276), (186, 1384578), (194, 1327482), (234, 1100562), (244, 1055457), (279, 923052), (291, 884988), (351, 733708), (366, 703638), (372, 692289), (388, 663741), (403, 639036), (468, 550281), (549, 469092), (558, 461526), (582, 442494), (702, 366854), (732, 351819), (793, 324756), (806, 319518), (837, 307684), (873, 294996), (1098, 234546), (1116, 230763), (1164, 221247), (1209, 213012), (1261, 204228), (1404, 183427), (1586, 162378), (1612, 159759), (1647, 156364), (1674, 153842), (1746, 147498), (1891, 136188), (2196, 117273), (2379, 108252), (2418, 106506), (2522, 102114), (2619, 98332), (3007, 85644), (3172, 81189), (3294, 78182), (3348, 76921), (3492, 73749), (3627, 71004), (3782, 68094), (3783, 68076), (4758, 54126), (4836, 53253), (5044, 51057), (5238, 49166), (5673, 45396), (5917, 43524), (6014, 42822), (6588, 39091), (7137, 36084), (7254, 35502), (7564, 34047), (7566, 34038), (9021, 28548), (9516, 27063), (10476, 24583), (10881, 23668), (11346, 22698), (11349, 22692), (11834, 21762), (12028, 21411), (14274, 18042), (14508, 17751), (15132, 17019)]