30204860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2731}}^1$

素因数の和:2826

約数の個数: 48

約数和(自身を含む): 73436160

約数和(自身を除く): 43231300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2731, 2765, 5462, 5530, 10924, 11060, 13655, 19117, 27310, 38234, 54620, 76468, 95585, 191170, 215749, 382340, 431498, 862996, 1078745, 1510243, 2157490, 3020486, 4314980, 6040972, 7551215, 15102430, 30204860]

約数ペア:

[(1, 30204860), (2, 15102430), (4, 7551215), (5, 6040972), (7, 4314980), (10, 3020486), (14, 2157490), (20, 1510243), (28, 1078745), (35, 862996), (70, 431498), (79, 382340), (140, 215749), (158, 191170), (316, 95585), (395, 76468), (553, 54620), (790, 38234), (1106, 27310), (1580, 19117), (2212, 13655), (2731, 11060), (2765, 10924), (5462, 5530)]