21318750

素因数分解:

$2^1\times 3^2\times 5^5\times {\mathrm{379}}^1$

素因数の和:412

約数の個数: 72

約数和(自身を含む): 57886920

約数和(自身を除く): 36568170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 379, 450, 625, 750, 758, 1125, 1137, 1250, 1875, 1895, 2250, 2274, 3125, 3411, 3750, 3790, 5625, 5685, 6250, 6822, 9375, 9475, 11250, 11370, 17055, 18750, 18950, 28125, 28425, 34110, 47375, 56250, 56850, 85275, 94750, 142125, 170550, 236875, 284250, 426375, 473750, 710625, 852750, 1184375, 1421250, 2131875, 2368750, 3553125, 4263750, 7106250, 10659375, 21318750]

約数ペア:

[(1, 21318750), (2, 10659375), (3, 7106250), (5, 4263750), (6, 3553125), (9, 2368750), (10, 2131875), (15, 1421250), (18, 1184375), (25, 852750), (30, 710625), (45, 473750), (50, 426375), (75, 284250), (90, 236875), (125, 170550), (150, 142125), (225, 94750), (250, 85275), (375, 56850), (379, 56250), (450, 47375), (625, 34110), (750, 28425), (758, 28125), (1125, 18950), (1137, 18750), (1250, 17055), (1875, 11370), (1895, 11250), (2250, 9475), (2274, 9375), (3125, 6822), (3411, 6250), (3750, 5685), (3790, 5625)]