18789680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 160

約数和(自身を含む): 56246400

約数和(自身を除く): 37456720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 35, 40, 52, 56, 58, 65, 70, 80, 89, 91, 104, 112, 116, 130, 140, 145, 178, 182, 203, 208, 232, 260, 280, 290, 356, 364, 377, 406, 445, 455, 464, 520, 560, 580, 623, 712, 728, 754, 812, 890, 910, 1015, 1040, 1157, 1160, 1246, 1424, 1456, 1508, 1624, 1780, 1820, 1885, 2030, 2314, 2320, 2492, 2581, 2639, 3016, 3115, 3248, 3560, 3640, 3770, 4060, 4628, 4984, 5162, 5278, 5785, 6032, 6230, 7120, 7280, 7540, 8099, 8120, 9256, 9968, 10324, 10556, 11570, 12460, 12905, 13195, 15080, 16198, 16240, 18067, 18512, 20648, 21112, 23140, 24920, 25810, 26390, 30160, 32396, 33553, 36134, 40495, 41296, 42224, 46280, 49840, 51620, 52780, 64792, 67106, 72268, 80990, 90335, 92560, 103240, 105560, 129584, 134212, 144536, 161980, 167765, 180670, 206480, 211120, 234871, 268424, 289072, 323960, 335530, 361340, 469742, 536848, 647920, 671060, 722680, 939484, 1174355, 1342120, 1445360, 1878968, 2348710, 2684240, 3757936, 4697420, 9394840, 18789680]

約数ペア:

[(1, 18789680), (2, 9394840), (4, 4697420), (5, 3757936), (7, 2684240), (8, 2348710), (10, 1878968), (13, 1445360), (14, 1342120), (16, 1174355), (20, 939484), (26, 722680), (28, 671060), (29, 647920), (35, 536848), (40, 469742), (52, 361340), (56, 335530), (58, 323960), (65, 289072), (70, 268424), (80, 234871), (89, 211120), (91, 206480), (104, 180670), (112, 167765), (116, 161980), (130, 144536), (140, 134212), (145, 129584), (178, 105560), (182, 103240), (203, 92560), (208, 90335), (232, 80990), (260, 72268), (280, 67106), (290, 64792), (356, 52780), (364, 51620), (377, 49840), (406, 46280), (445, 42224), (455, 41296), (464, 40495), (520, 36134), (560, 33553), (580, 32396), (623, 30160), (712, 26390), (728, 25810), (754, 24920), (812, 23140), (890, 21112), (910, 20648), (1015, 18512), (1040, 18067), (1157, 16240), (1160, 16198), (1246, 15080), (1424, 13195), (1456, 12905), (1508, 12460), (1624, 11570), (1780, 10556), (1820, 10324), (1885, 9968), (2030, 9256), (2314, 8120), (2320, 8099), (2492, 7540), (2581, 7280), (2639, 7120), (3016, 6230), (3115, 6032), (3248, 5785), (3560, 5278), (3640, 5162), (3770, 4984), (4060, 4628)]