65223640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26731}}^1$

素因数の和:26803

約数の個数: 32

約数和(自身を含む): 149164560

約数和(自身を除く): 83940920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 26731, 53462, 106924, 133655, 213848, 267310, 534620, 1069240, 1630591, 3261182, 6522364, 8152955, 13044728, 16305910, 32611820, 65223640]

約数ペア:

[(1, 65223640), (2, 32611820), (4, 16305910), (5, 13044728), (8, 8152955), (10, 6522364), (20, 3261182), (40, 1630591), (61, 1069240), (122, 534620), (244, 267310), (305, 213848), (488, 133655), (610, 106924), (1220, 53462), (2440, 26731)]