28623640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11731}}^1$

素因数の和:11803

約数の個数: 32

約数和(自身を含む): 65464560

約数和(自身を除く): 36840920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11731, 23462, 46924, 58655, 93848, 117310, 234620, 469240, 715591, 1431182, 2862364, 3577955, 5724728, 7155910, 14311820, 28623640]

約数ペア:

[(1, 28623640), (2, 14311820), (4, 7155910), (5, 5724728), (8, 3577955), (10, 2862364), (20, 1431182), (40, 715591), (61, 469240), (122, 234620), (244, 117310), (305, 93848), (488, 58655), (610, 46924), (1220, 23462), (2440, 11731)]