128889775

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 191505600

約数和(自身を除く): 62615825

約数列:

[1, 5, 7, 25, 29, 35, 109, 145, 175, 203, 233, 545, 725, 763, 1015, 1165, 1631, 2725, 3161, 3815, 5075, 5825, 6757, 8155, 15805, 19075, 22127, 25397, 33785, 40775, 47299, 79025, 110635, 126985, 168925, 177779, 236495, 553175, 634925, 736513, 888895, 1182475, 3682565, 4444475, 5155591, 18412825, 25777955, 128889775]

約数ペア:

[(1, 128889775), (5, 25777955), (7, 18412825), (25, 5155591), (29, 4444475), (35, 3682565), (109, 1182475), (145, 888895), (175, 736513), (203, 634925), (233, 553175), (545, 236495), (725, 177779), (763, 168925), (1015, 126985), (1165, 110635), (1631, 79025), (2725, 47299), (3161, 40775), (3815, 33785), (5075, 25397), (5825, 22127), (6757, 19075), (8155, 15805)]