205655480

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 471303360

約数和(自身を除く): 265647880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 173, 226, 263, 346, 452, 526, 565, 692, 865, 904, 1052, 1130, 1315, 1384, 1730, 2104, 2260, 2630, 3460, 4520, 5260, 6920, 10520, 19549, 29719, 39098, 45499, 59438, 78196, 90998, 97745, 118876, 148595, 156392, 181996, 195490, 227495, 237752, 297190, 363992, 390980, 454990, 594380, 781960, 909980, 1188760, 1819960, 5141387, 10282774, 20565548, 25706935, 41131096, 51413870, 102827740, 205655480]

約数ペア:

[(1, 205655480), (2, 102827740), (4, 51413870), (5, 41131096), (8, 25706935), (10, 20565548), (20, 10282774), (40, 5141387), (113, 1819960), (173, 1188760), (226, 909980), (263, 781960), (346, 594380), (452, 454990), (526, 390980), (565, 363992), (692, 297190), (865, 237752), (904, 227495), (1052, 195490), (1130, 181996), (1315, 156392), (1384, 148595), (1730, 118876), (2104, 97745), (2260, 90998), (2630, 78196), (3460, 59438), (4520, 45499), (5260, 39098), (6920, 29719), (10520, 19549)]