81710110

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 160704000

約数和(自身を除く): 78993890

約数列:

[1, 2, 5, 10, 29, 31, 58, 61, 62, 122, 145, 149, 155, 290, 298, 305, 310, 610, 745, 899, 1490, 1769, 1798, 1891, 3538, 3782, 4321, 4495, 4619, 8642, 8845, 8990, 9089, 9238, 9455, 17690, 18178, 18910, 21605, 23095, 43210, 45445, 46190, 54839, 90890, 109678, 133951, 263581, 267902, 274195, 281759, 527162, 548390, 563518, 669755, 1317905, 1339510, 1408795, 2635810, 2817590, 8171011, 16342022, 40855055, 81710110]

約数ペア:

[(1, 81710110), (2, 40855055), (5, 16342022), (10, 8171011), (29, 2817590), (31, 2635810), (58, 1408795), (61, 1339510), (62, 1317905), (122, 669755), (145, 563518), (149, 548390), (155, 527162), (290, 281759), (298, 274195), (305, 267902), (310, 263581), (610, 133951), (745, 109678), (899, 90890), (1490, 54839), (1769, 46190), (1798, 45445), (1891, 43210), (3538, 23095), (3782, 21605), (4321, 18910), (4495, 18178), (4619, 17690), (8642, 9455), (8845, 9238), (8990, 9089)]