87216580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 208236672

約数和(自身を除く): 121020092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 67, 97, 110, 122, 134, 194, 220, 244, 268, 305, 335, 388, 485, 610, 670, 671, 737, 970, 1067, 1220, 1340, 1342, 1474, 1940, 2134, 2684, 2948, 3355, 3685, 4087, 4268, 5335, 5917, 6499, 6710, 7370, 8174, 10670, 11834, 12998, 13420, 14740, 16348, 20435, 21340, 23668, 25996, 29585, 32495, 40870, 44957, 59170, 64990, 65087, 71489, 81740, 89914, 118340, 129980, 130174, 142978, 179828, 224785, 260348, 285956, 325435, 357445, 396439, 449570, 650870, 714890, 792878, 899140, 1301740, 1429780, 1585756, 1982195, 3964390, 4360829, 7928780, 8721658, 17443316, 21804145, 43608290, 87216580]

約数ペア:

[(1, 87216580), (2, 43608290), (4, 21804145), (5, 17443316), (10, 8721658), (11, 7928780), (20, 4360829), (22, 3964390), (44, 1982195), (55, 1585756), (61, 1429780), (67, 1301740), (97, 899140), (110, 792878), (122, 714890), (134, 650870), (194, 449570), (220, 396439), (244, 357445), (268, 325435), (305, 285956), (335, 260348), (388, 224785), (485, 179828), (610, 142978), (670, 130174), (671, 129980), (737, 118340), (970, 89914), (1067, 81740), (1220, 71489), (1340, 65087), (1342, 64990), (1474, 59170), (1940, 44957), (2134, 40870), (2684, 32495), (2948, 29585), (3355, 25996), (3685, 23668), (4087, 21340), (4268, 20435), (5335, 16348), (5917, 14740), (6499, 13420), (6710, 12998), (7370, 11834), (8174, 10670)]