71397840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{571}}^1$

素因数の和:1108

約数の個数: 80

約数和(自身を含む): 222146496

約数和(自身を除く): 150748656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 521, 571, 1042, 1142, 1563, 1713, 2084, 2284, 2605, 2855, 3126, 3426, 4168, 4568, 5210, 5710, 6252, 6852, 7815, 8336, 8565, 9136, 10420, 11420, 12504, 13704, 15630, 17130, 20840, 22840, 25008, 27408, 31260, 34260, 41680, 45680, 62520, 68520, 125040, 137040, 297491, 594982, 892473, 1189964, 1487455, 1784946, 2379928, 2974910, 3569892, 4462365, 4759856, 5949820, 7139784, 8924730, 11899640, 14279568, 17849460, 23799280, 35698920, 71397840]

約数ペア:

[(1, 71397840), (2, 35698920), (3, 23799280), (4, 17849460), (5, 14279568), (6, 11899640), (8, 8924730), (10, 7139784), (12, 5949820), (15, 4759856), (16, 4462365), (20, 3569892), (24, 2974910), (30, 2379928), (40, 1784946), (48, 1487455), (60, 1189964), (80, 892473), (120, 594982), (240, 297491), (521, 137040), (571, 125040), (1042, 68520), (1142, 62520), (1563, 45680), (1713, 41680), (2084, 34260), (2284, 31260), (2605, 27408), (2855, 25008), (3126, 22840), (3426, 20840), (4168, 17130), (4568, 15630), (5210, 13704), (5710, 12504), (6252, 11420), (6852, 10420), (7815, 9136), (8336, 8565)]