18397125

素因数分解:

$3^4\times 5^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:129

約数の個数: 80

約数和(自身を含む): 36241920

約数和(自身を除く): 17844795

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 79, 81, 115, 125, 135, 207, 225, 237, 345, 375, 395, 405, 575, 621, 675, 711, 1035, 1125, 1185, 1725, 1817, 1863, 1975, 2025, 2133, 2875, 3105, 3375, 3555, 5175, 5451, 5925, 6399, 8625, 9085, 9315, 9875, 10125, 10665, 15525, 16353, 17775, 25875, 27255, 29625, 31995, 45425, 46575, 49059, 53325, 77625, 81765, 88875, 136275, 147177, 159975, 227125, 232875, 245295, 266625, 408825, 681375, 735885, 799875, 1226475, 2044125, 3679425, 6132375, 18397125]

約数ペア:

[(1, 18397125), (3, 6132375), (5, 3679425), (9, 2044125), (15, 1226475), (23, 799875), (25, 735885), (27, 681375), (45, 408825), (69, 266625), (75, 245295), (79, 232875), (81, 227125), (115, 159975), (125, 147177), (135, 136275), (207, 88875), (225, 81765), (237, 77625), (345, 53325), (375, 49059), (395, 46575), (405, 45425), (575, 31995), (621, 29625), (675, 27255), (711, 25875), (1035, 17775), (1125, 16353), (1185, 15525), (1725, 10665), (1817, 10125), (1863, 9875), (1975, 9315), (2025, 9085), (2133, 8625), (2875, 6399), (3105, 5925), (3375, 5451), (3555, 5175)]