30887420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 66648960

約数和(自身を除く): 35761540

約数列:

[1, 2, 4, 5, 10, 20, 79, 113, 158, 173, 226, 316, 346, 395, 452, 565, 692, 790, 865, 1130, 1580, 1730, 2260, 3460, 8927, 13667, 17854, 19549, 27334, 35708, 39098, 44635, 54668, 68335, 78196, 89270, 97745, 136670, 178540, 195490, 273340, 390980, 1544371, 3088742, 6177484, 7721855, 15443710, 30887420]

約数ペア:

[(1, 30887420), (2, 15443710), (4, 7721855), (5, 6177484), (10, 3088742), (20, 1544371), (79, 390980), (113, 273340), (158, 195490), (173, 178540), (226, 136670), (316, 97745), (346, 89270), (395, 78196), (452, 68335), (565, 54668), (692, 44635), (790, 39098), (865, 35708), (1130, 27334), (1580, 19549), (1730, 17854), (2260, 13667), (3460, 8927)]