28406540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45817}}^1$

素因数の和:45857

約数の個数: 24

約数和(自身を含む): 61579392

約数和(自身を除く): 33172852

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 45817, 91634, 183268, 229085, 458170, 916340, 1420327, 2840654, 5681308, 7101635, 14203270, 28406540]

約数ペア:

[(1, 28406540), (2, 14203270), (4, 7101635), (5, 5681308), (10, 2840654), (20, 1420327), (31, 916340), (62, 458170), (124, 229085), (155, 183268), (310, 91634), (620, 45817)]