12989825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 18748800

約数和(自身を除く): 5758975

約数列:

[1, 5, 19, 23, 25, 29, 41, 95, 115, 145, 205, 437, 475, 551, 575, 667, 725, 779, 943, 1025, 1189, 2185, 2755, 3335, 3895, 4715, 5945, 10925, 12673, 13775, 16675, 17917, 19475, 22591, 23575, 27347, 29725, 63365, 89585, 112955, 136735, 316825, 447925, 519593, 564775, 683675, 2597965, 12989825]

約数ペア:

[(1, 12989825), (5, 2597965), (19, 683675), (23, 564775), (25, 519593), (29, 447925), (41, 316825), (95, 136735), (115, 112955), (145, 89585), (205, 63365), (437, 29725), (475, 27347), (551, 23575), (575, 22591), (667, 19475), (725, 17917), (779, 16675), (943, 13775), (1025, 12673), (1189, 10925), (2185, 5945), (2755, 4715), (3335, 3895)]