990300425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 1348723200

約数和(自身を除く): 358422775

約数列:

[1, 5, 19, 25, 31, 95, 109, 155, 475, 545, 589, 617, 775, 2071, 2725, 2945, 3085, 3379, 10355, 11723, 14725, 15425, 16895, 19127, 51775, 58615, 64201, 67253, 84475, 95635, 293075, 321005, 336265, 363413, 478175, 1277807, 1605025, 1681325, 1817065, 2084843, 6389035, 9085325, 10424215, 31945175, 39612017, 52121075, 198060085, 990300425]

約数ペア:

[(1, 990300425), (5, 198060085), (19, 52121075), (25, 39612017), (31, 31945175), (95, 10424215), (109, 9085325), (155, 6389035), (475, 2084843), (545, 1817065), (589, 1681325), (617, 1605025), (775, 1277807), (2071, 478175), (2725, 363413), (2945, 336265), (3085, 321005), (3379, 293075), (10355, 95635), (11723, 84475), (14725, 67253), (15425, 64201), (16895, 58615), (19127, 51775)]