81378750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{21701}}^1$

素因数の和:21726

約数の個数: 40

約数和(自身を含む): 203391144

約数和(自身を除く): 122012394

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 625, 750, 1250, 1875, 3750, 21701, 43402, 65103, 108505, 130206, 217010, 325515, 542525, 651030, 1085050, 1627575, 2712625, 3255150, 5425250, 8137875, 13563125, 16275750, 27126250, 40689375, 81378750]

約数ペア:

[(1, 81378750), (2, 40689375), (3, 27126250), (5, 16275750), (6, 13563125), (10, 8137875), (15, 5425250), (25, 3255150), (30, 2712625), (50, 1627575), (75, 1085050), (125, 651030), (150, 542525), (250, 325515), (375, 217010), (625, 130206), (750, 108505), (1250, 65103), (1875, 43402), (3750, 21701)]