129739480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249499}}^1$

素因数の和:249523

約数の個数: 32

約数和(自身を含む): 314370000

約数和(自身を除く): 184630520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 249499, 498998, 997996, 1247495, 1995992, 2494990, 3243487, 4989980, 6486974, 9979960, 12973948, 16217435, 25947896, 32434870, 64869740, 129739480]

約数ペア:

[(1, 129739480), (2, 64869740), (4, 32434870), (5, 25947896), (8, 16217435), (10, 12973948), (13, 9979960), (20, 6486974), (26, 4989980), (40, 3243487), (52, 2494990), (65, 1995992), (104, 1247495), (130, 997996), (260, 498998), (520, 249499)]