18941520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{467}}^1$

素因数の和:509

約数の個数: 120

約数和(自身を含む): 63719136

約数和(自身を除く): 44777616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 390, 467, 507, 520, 624, 676, 780, 845, 934, 1014, 1040, 1352, 1401, 1560, 1690, 1868, 2028, 2335, 2535, 2704, 2802, 3120, 3380, 3736, 4056, 4670, 5070, 5604, 6071, 6760, 7005, 7472, 8112, 9340, 10140, 11208, 12142, 13520, 14010, 18213, 18680, 20280, 22416, 24284, 28020, 30355, 36426, 37360, 40560, 48568, 56040, 60710, 72852, 78923, 91065, 97136, 112080, 121420, 145704, 157846, 182130, 236769, 242840, 291408, 315692, 364260, 394615, 473538, 485680, 631384, 728520, 789230, 947076, 1183845, 1262768, 1457040, 1578460, 1894152, 2367690, 3156920, 3788304, 4735380, 6313840, 9470760, 18941520]

約数ペア:

[(1, 18941520), (2, 9470760), (3, 6313840), (4, 4735380), (5, 3788304), (6, 3156920), (8, 2367690), (10, 1894152), (12, 1578460), (13, 1457040), (15, 1262768), (16, 1183845), (20, 947076), (24, 789230), (26, 728520), (30, 631384), (39, 485680), (40, 473538), (48, 394615), (52, 364260), (60, 315692), (65, 291408), (78, 242840), (80, 236769), (104, 182130), (120, 157846), (130, 145704), (156, 121420), (169, 112080), (195, 97136), (208, 91065), (240, 78923), (260, 72852), (312, 60710), (338, 56040), (390, 48568), (467, 40560), (507, 37360), (520, 36426), (624, 30355), (676, 28020), (780, 24284), (845, 22416), (934, 20280), (1014, 18680), (1040, 18213), (1352, 14010), (1401, 13520), (1560, 12142), (1690, 11208), (1868, 10140), (2028, 9340), (2335, 8112), (2535, 7472), (2704, 7005), (2802, 6760), (3120, 6071), (3380, 5604), (3736, 5070), (4056, 4670)]