18770625

素因数分解:

$3^2\times 5^4\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 60

約数和(自身を含む): 35088768

約数和(自身を除く): 16318143

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 71, 75, 125, 141, 213, 225, 235, 355, 375, 423, 625, 639, 705, 1065, 1125, 1175, 1775, 1875, 2115, 3195, 3337, 3525, 5325, 5625, 5875, 8875, 10011, 10575, 15975, 16685, 17625, 26625, 29375, 30033, 44375, 50055, 52875, 79875, 83425, 88125, 133125, 150165, 250275, 264375, 399375, 417125, 750825, 1251375, 2085625, 3754125, 6256875, 18770625]

約数ペア:

[(1, 18770625), (3, 6256875), (5, 3754125), (9, 2085625), (15, 1251375), (25, 750825), (45, 417125), (47, 399375), (71, 264375), (75, 250275), (125, 150165), (141, 133125), (213, 88125), (225, 83425), (235, 79875), (355, 52875), (375, 50055), (423, 44375), (625, 30033), (639, 29375), (705, 26625), (1065, 17625), (1125, 16685), (1175, 15975), (1775, 10575), (1875, 10011), (2115, 8875), (3195, 5875), (3337, 5625), (3525, 5325)]