202475740

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 431756640

約数和(自身を除く): 229280900

約数列:

[1, 2, 4, 5, 10, 20, 139, 173, 278, 346, 421, 556, 692, 695, 842, 865, 1390, 1684, 1730, 2105, 2780, 3460, 4210, 8420, 24047, 48094, 58519, 72833, 96188, 117038, 120235, 145666, 234076, 240470, 291332, 292595, 364165, 480940, 585190, 728330, 1170380, 1456660, 10123787, 20247574, 40495148, 50618935, 101237870, 202475740]

約数ペア:

[(1, 202475740), (2, 101237870), (4, 50618935), (5, 40495148), (10, 20247574), (20, 10123787), (139, 1456660), (173, 1170380), (278, 728330), (346, 585190), (421, 480940), (556, 364165), (692, 292595), (695, 291332), (842, 240470), (865, 234076), (1390, 145666), (1684, 120235), (1730, 117038), (2105, 96188), (2780, 72833), (3460, 58519), (4210, 48094), (8420, 24047)]