72163480

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{11491}}^1$

素因数の和:11659

約数の個数: 32

約数和(自身を含む): 163416240

約数和(自身を除く): 91252760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 11491, 22982, 45964, 57455, 91928, 114910, 229820, 459640, 1804087, 3608174, 7216348, 9020435, 14432696, 18040870, 36081740, 72163480]

約数ペア:

[(1, 72163480), (2, 36081740), (4, 18040870), (5, 14432696), (8, 9020435), (10, 7216348), (20, 3608174), (40, 1804087), (157, 459640), (314, 229820), (628, 114910), (785, 91928), (1256, 57455), (1570, 45964), (3140, 22982), (6280, 11491)]