28843240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11821}}^1$

素因数の和:11893

約数の個数: 32

約数和(自身を含む): 65966760

約数和(自身を除く): 37123520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11821, 23642, 47284, 59105, 94568, 118210, 236420, 472840, 721081, 1442162, 2884324, 3605405, 5768648, 7210810, 14421620, 28843240]

約数ペア:

[(1, 28843240), (2, 14421620), (4, 7210810), (5, 5768648), (8, 3605405), (10, 2884324), (20, 1442162), (40, 721081), (61, 472840), (122, 236420), (244, 118210), (305, 94568), (488, 59105), (610, 47284), (1220, 23642), (2440, 11821)]