18646875

素因数分解:

$3^3\times 5^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:64

約数の個数: 96

約数和(自身を含む): 39372480

約数和(自身を除く): 20725605

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 27, 39, 45, 51, 65, 75, 85, 117, 125, 135, 153, 195, 221, 225, 255, 325, 351, 375, 425, 459, 585, 625, 663, 675, 765, 975, 1105, 1125, 1275, 1625, 1755, 1875, 1989, 2125, 2295, 2925, 3125, 3315, 3375, 3825, 4875, 5525, 5625, 5967, 6375, 8125, 8775, 9375, 9945, 10625, 11475, 14625, 16575, 16875, 19125, 24375, 27625, 28125, 29835, 31875, 40625, 43875, 49725, 53125, 57375, 73125, 82875, 84375, 95625, 121875, 138125, 149175, 159375, 219375, 248625, 286875, 365625, 414375, 478125, 690625, 745875, 1096875, 1243125, 1434375, 2071875, 3729375, 6215625, 18646875]

約数ペア:

[(1, 18646875), (3, 6215625), (5, 3729375), (9, 2071875), (13, 1434375), (15, 1243125), (17, 1096875), (25, 745875), (27, 690625), (39, 478125), (45, 414375), (51, 365625), (65, 286875), (75, 248625), (85, 219375), (117, 159375), (125, 149175), (135, 138125), (153, 121875), (195, 95625), (221, 84375), (225, 82875), (255, 73125), (325, 57375), (351, 53125), (375, 49725), (425, 43875), (459, 40625), (585, 31875), (625, 29835), (663, 28125), (675, 27625), (765, 24375), (975, 19125), (1105, 16875), (1125, 16575), (1275, 14625), (1625, 11475), (1755, 10625), (1875, 9945), (1989, 9375), (2125, 8775), (2295, 8125), (2925, 6375), (3125, 5967), (3315, 5625), (3375, 5525), (3825, 4875)]