127989680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17581}}^1$

素因数の和:17614

約数の個数: 80

約数和(自身を含む): 366268224

約数和(自身を除く): 238278544

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 17581, 35162, 70324, 87905, 123067, 140648, 175810, 228553, 246134, 281296, 351620, 457106, 492268, 615335, 703240, 914212, 984536, 1142765, 1230670, 1406480, 1599871, 1828424, 1969072, 2285530, 2461340, 3199742, 3656848, 4571060, 4922680, 6399484, 7999355, 9142120, 9845360, 12798968, 15998710, 18284240, 25597936, 31997420, 63994840, 127989680]

約数ペア:

[(1, 127989680), (2, 63994840), (4, 31997420), (5, 25597936), (7, 18284240), (8, 15998710), (10, 12798968), (13, 9845360), (14, 9142120), (16, 7999355), (20, 6399484), (26, 4922680), (28, 4571060), (35, 3656848), (40, 3199742), (52, 2461340), (56, 2285530), (65, 1969072), (70, 1828424), (80, 1599871), (91, 1406480), (104, 1230670), (112, 1142765), (130, 984536), (140, 914212), (182, 703240), (208, 615335), (260, 492268), (280, 457106), (364, 351620), (455, 281296), (520, 246134), (560, 228553), (728, 175810), (910, 140648), (1040, 123067), (1456, 87905), (1820, 70324), (3640, 35162), (7280, 17581)]