20323875

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 39836160

約数和(自身を除く): 19512285

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 125, 143, 165, 195, 275, 325, 375, 379, 429, 715, 825, 975, 1137, 1375, 1625, 1895, 2145, 3575, 4125, 4169, 4875, 4927, 5685, 9475, 10725, 12507, 14781, 17875, 20845, 24635, 28425, 47375, 53625, 54197, 62535, 73905, 104225, 123175, 142125, 162591, 270985, 312675, 369525, 521125, 615875, 812955, 1354925, 1563375, 1847625, 4064775, 6774625, 20323875]

約数ペア:

[(1, 20323875), (3, 6774625), (5, 4064775), (11, 1847625), (13, 1563375), (15, 1354925), (25, 812955), (33, 615875), (39, 521125), (55, 369525), (65, 312675), (75, 270985), (125, 162591), (143, 142125), (165, 123175), (195, 104225), (275, 73905), (325, 62535), (375, 54197), (379, 53625), (429, 47375), (715, 28425), (825, 24635), (975, 20845), (1137, 17875), (1375, 14781), (1625, 12507), (1895, 10725), (2145, 9475), (3575, 5685), (4125, 4927), (4169, 4875)]