2122640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:196

約数の個数: 60

約数和(自身を含む): 5378004

約数和(自身を除く): 3255364

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 157, 169, 208, 260, 314, 338, 520, 628, 676, 785, 845, 1040, 1256, 1352, 1570, 1690, 2041, 2512, 2704, 3140, 3380, 4082, 6280, 6760, 8164, 10205, 12560, 13520, 16328, 20410, 26533, 32656, 40820, 53066, 81640, 106132, 132665, 163280, 212264, 265330, 424528, 530660, 1061320, 2122640]

約数ペア:

[(1, 2122640), (2, 1061320), (4, 530660), (5, 424528), (8, 265330), (10, 212264), (13, 163280), (16, 132665), (20, 106132), (26, 81640), (40, 53066), (52, 40820), (65, 32656), (80, 26533), (104, 20410), (130, 16328), (157, 13520), (169, 12560), (208, 10205), (260, 8164), (314, 6760), (338, 6280), (520, 4082), (628, 3380), (676, 3140), (785, 2704), (845, 2512), (1040, 2041), (1256, 1690), (1352, 1570)]