163420220

素因数分解:

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

素因数の和:279

約数の個数: 96

約数和(自身を含む): 374976000

約数和(自身を除く): 211555780

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 61, 62, 116, 122, 124, 145, 149, 155, 244, 290, 298, 305, 310, 580, 596, 610, 620, 745, 899, 1220, 1490, 1769, 1798, 1891, 2980, 3538, 3596, 3782, 4321, 4495, 4619, 7076, 7564, 8642, 8845, 8990, 9089, 9238, 9455, 17284, 17690, 17980, 18178, 18476, 18910, 21605, 23095, 35380, 36356, 37820, 43210, 45445, 46190, 54839, 86420, 90890, 92380, 109678, 133951, 181780, 219356, 263581, 267902, 274195, 281759, 527162, 535804, 548390, 563518, 669755, 1054324, 1096780, 1127036, 1317905, 1339510, 1408795, 2635810, 2679020, 2817590, 5271620, 5635180, 8171011, 16342022, 32684044, 40855055, 81710110, 163420220]

約数ペア:

[(1, 163420220), (2, 81710110), (4, 40855055), (5, 32684044), (10, 16342022), (20, 8171011), (29, 5635180), (31, 5271620), (58, 2817590), (61, 2679020), (62, 2635810), (116, 1408795), (122, 1339510), (124, 1317905), (145, 1127036), (149, 1096780), (155, 1054324), (244, 669755), (290, 563518), (298, 548390), (305, 535804), (310, 527162), (580, 281759), (596, 274195), (610, 267902), (620, 263581), (745, 219356), (899, 181780), (1220, 133951), (1490, 109678), (1769, 92380), (1798, 90890), (1891, 86420), (2980, 54839), (3538, 46190), (3596, 45445), (3782, 43210), (4321, 37820), (4495, 36356), (4619, 35380), (7076, 23095), (7564, 21605), (8642, 18910), (8845, 18476), (8990, 18178), (9089, 17980), (9238, 17690), (9455, 17284)]