30731240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1051}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 74986560

約数和(自身を除く): 44255320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1051, 1462, 1720, 2102, 2924, 3655, 4204, 5255, 5848, 7310, 8408, 10510, 14620, 17867, 21020, 29240, 35734, 42040, 45193, 71468, 89335, 90386, 142936, 178670, 180772, 225965, 357340, 361544, 451930, 714680, 768281, 903860, 1536562, 1807720, 3073124, 3841405, 6146248, 7682810, 15365620, 30731240]

約数ペア:

[(1, 30731240), (2, 15365620), (4, 7682810), (5, 6146248), (8, 3841405), (10, 3073124), (17, 1807720), (20, 1536562), (34, 903860), (40, 768281), (43, 714680), (68, 451930), (85, 361544), (86, 357340), (136, 225965), (170, 180772), (172, 178670), (215, 142936), (340, 90386), (344, 89335), (430, 71468), (680, 45193), (731, 42040), (860, 35734), (1051, 29240), (1462, 21020), (1720, 17867), (2102, 14620), (2924, 10510), (3655, 8408), (4204, 7310), (5255, 5848)]