8318960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 80

約数和(自身を含む): 21977760

約数和(自身を除く): 13658800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 421, 494, 520, 760, 842, 988, 1040, 1235, 1520, 1684, 1976, 2105, 2470, 3368, 3952, 4210, 4940, 5473, 6736, 7999, 8420, 9880, 10946, 15998, 16840, 19760, 21892, 27365, 31996, 33680, 39995, 43784, 54730, 63992, 79990, 87568, 103987, 109460, 127984, 159980, 207974, 218920, 319960, 415948, 437840, 519935, 639920, 831896, 1039870, 1663792, 2079740, 4159480, 8318960]

約数ペア:

[(1, 8318960), (2, 4159480), (4, 2079740), (5, 1663792), (8, 1039870), (10, 831896), (13, 639920), (16, 519935), (19, 437840), (20, 415948), (26, 319960), (38, 218920), (40, 207974), (52, 159980), (65, 127984), (76, 109460), (80, 103987), (95, 87568), (104, 79990), (130, 63992), (152, 54730), (190, 43784), (208, 39995), (247, 33680), (260, 31996), (304, 27365), (380, 21892), (421, 19760), (494, 16840), (520, 15998), (760, 10946), (842, 9880), (988, 8420), (1040, 7999), (1235, 6736), (1520, 5473), (1684, 4940), (1976, 4210), (2105, 3952), (2470, 3368)]