30490840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9649}}^1$

素因数の和:9739

約数の個数: 32

約数和(自身を含む): 69480000

約数和(自身を除く): 38989160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 9649, 19298, 38596, 48245, 77192, 96490, 192980, 385960, 762271, 1524542, 3049084, 3811355, 6098168, 7622710, 15245420, 30490840]

約数ペア:

[(1, 30490840), (2, 15245420), (4, 7622710), (5, 6098168), (8, 3811355), (10, 3049084), (20, 1524542), (40, 762271), (79, 385960), (158, 192980), (316, 96490), (395, 77192), (632, 48245), (790, 38596), (1580, 19298), (3160, 9649)]