210878650

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 400688640

約数和(自身を除く): 189809990

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 197, 271, 394, 395, 542, 790, 985, 1355, 1970, 1975, 2710, 3950, 4925, 6775, 9850, 13550, 15563, 21409, 31126, 42818, 53387, 77815, 106774, 107045, 155630, 214090, 266935, 389075, 533870, 535225, 778150, 1070450, 1334675, 2669350, 4217573, 8435146, 21087865, 42175730, 105439325, 210878650]

約数ペア:

[(1, 210878650), (2, 105439325), (5, 42175730), (10, 21087865), (25, 8435146), (50, 4217573), (79, 2669350), (158, 1334675), (197, 1070450), (271, 778150), (394, 535225), (395, 533870), (542, 389075), (790, 266935), (985, 214090), (1355, 155630), (1970, 107045), (1975, 106774), (2710, 77815), (3950, 53387), (4925, 42818), (6775, 31126), (9850, 21409), (13550, 15563)]