72508760

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{6689}}^1$

素因数の和:6971

約数の個数: 32

約数和(自身を含む): 163771200

約数和(自身を除く): 91262440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 6689, 10840, 13378, 26756, 33445, 53512, 66890, 133780, 267560, 1812719, 3625438, 7250876, 9063595, 14501752, 18127190, 36254380, 72508760]

約数ペア:

[(1, 72508760), (2, 36254380), (4, 18127190), (5, 14501752), (8, 9063595), (10, 7250876), (20, 3625438), (40, 1812719), (271, 267560), (542, 133780), (1084, 66890), (1355, 53512), (2168, 33445), (2710, 26756), (5420, 13378), (6689, 10840)]