28293330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72547}}^1$

素因数の和:72570

約数の個数: 32

約数和(自身を含む): 73128384

約数和(自身を除く): 44835054

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72547, 145094, 217641, 362735, 435282, 725470, 943111, 1088205, 1886222, 2176410, 2829333, 4715555, 5658666, 9431110, 14146665, 28293330]

約数ペア:

[(1, 28293330), (2, 14146665), (3, 9431110), (5, 5658666), (6, 4715555), (10, 2829333), (13, 2176410), (15, 1886222), (26, 1088205), (30, 943111), (39, 725470), (65, 435282), (78, 362735), (130, 217641), (195, 145094), (390, 72547)]