1285960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2473}}^1$

素因数の和:2497

約数の個数: 32

約数和(自身を含む): 3117240

約数和(自身を除く): 1831280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2473, 4946, 9892, 12365, 19784, 24730, 32149, 49460, 64298, 98920, 128596, 160745, 257192, 321490, 642980, 1285960]

約数ペア:

[(1, 1285960), (2, 642980), (4, 321490), (5, 257192), (8, 160745), (10, 128596), (13, 98920), (20, 64298), (26, 49460), (40, 32149), (52, 24730), (65, 19784), (104, 12365), (130, 9892), (260, 4946), (520, 2473)]