287533780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1\times {\mathrm{613}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 618912000

約数和(自身を除く): 331378220

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 499, 613, 940, 998, 1226, 1996, 2452, 2495, 3065, 4990, 6130, 9980, 12260, 23453, 28811, 46906, 57622, 93812, 115244, 117265, 144055, 234530, 288110, 305887, 469060, 576220, 611774, 1223548, 1529435, 3058870, 6117740, 14376689, 28753378, 57506756, 71883445, 143766890, 287533780]

約数ペア:

[(1, 287533780), (2, 143766890), (4, 71883445), (5, 57506756), (10, 28753378), (20, 14376689), (47, 6117740), (94, 3058870), (188, 1529435), (235, 1223548), (470, 611774), (499, 576220), (613, 469060), (940, 305887), (998, 288110), (1226, 234530), (1996, 144055), (2452, 117265), (2495, 115244), (3065, 93812), (4990, 57622), (6130, 46906), (9980, 28811), (12260, 23453)]