18930375

素因数分解:

$3^3\times 5^3\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 35942400

約数和(自身を除く): 17012025

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 79, 125, 135, 213, 225, 237, 355, 375, 395, 639, 675, 711, 1065, 1125, 1185, 1775, 1917, 1975, 2133, 3195, 3375, 3555, 5325, 5609, 5925, 8875, 9585, 9875, 10665, 15975, 16827, 17775, 26625, 28045, 29625, 47925, 50481, 53325, 79875, 84135, 88875, 140225, 151443, 239625, 252405, 266625, 420675, 701125, 757215, 1262025, 2103375, 3786075, 6310125, 18930375]

約数ペア:

[(1, 18930375), (3, 6310125), (5, 3786075), (9, 2103375), (15, 1262025), (25, 757215), (27, 701125), (45, 420675), (71, 266625), (75, 252405), (79, 239625), (125, 151443), (135, 140225), (213, 88875), (225, 84135), (237, 79875), (355, 53325), (375, 50481), (395, 47925), (639, 29625), (675, 28045), (711, 26625), (1065, 17775), (1125, 16827), (1185, 15975), (1775, 10665), (1917, 9875), (1975, 9585), (2133, 8875), (3195, 5925), (3375, 5609), (3555, 5325)]