18759375

素因数分解:

$3^2\times 5^5\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 36560160

約数和(自身を除く): 17800785

約数列:

[1, 3, 5, 9, 15, 23, 25, 29, 45, 69, 75, 87, 115, 125, 145, 207, 225, 261, 345, 375, 435, 575, 625, 667, 725, 1035, 1125, 1305, 1725, 1875, 2001, 2175, 2875, 3125, 3335, 3625, 5175, 5625, 6003, 6525, 8625, 9375, 10005, 10875, 14375, 16675, 18125, 25875, 28125, 30015, 32625, 43125, 50025, 54375, 71875, 83375, 90625, 129375, 150075, 163125, 215625, 250125, 271875, 416875, 646875, 750375, 815625, 1250625, 2084375, 3751875, 6253125, 18759375]

約数ペア:

[(1, 18759375), (3, 6253125), (5, 3751875), (9, 2084375), (15, 1250625), (23, 815625), (25, 750375), (29, 646875), (45, 416875), (69, 271875), (75, 250125), (87, 215625), (115, 163125), (125, 150075), (145, 129375), (207, 90625), (225, 83375), (261, 71875), (345, 54375), (375, 50025), (435, 43125), (575, 32625), (625, 30015), (667, 28125), (725, 25875), (1035, 18125), (1125, 16675), (1305, 14375), (1725, 10875), (1875, 10005), (2001, 9375), (2175, 8625), (2875, 6525), (3125, 6003), (3335, 5625), (3625, 5175)]