18240525

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 34134720

約数和(自身を除く): 15894195

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 443, 549, 675, 915, 1329, 1525, 1647, 2215, 2745, 3987, 4575, 6645, 8235, 11075, 11961, 13725, 19935, 27023, 33225, 41175, 59805, 81069, 99675, 135115, 243207, 299025, 405345, 675575, 729621, 1216035, 2026725, 3648105, 6080175, 18240525]

約数ペア:

[(1, 18240525), (3, 6080175), (5, 3648105), (9, 2026725), (15, 1216035), (25, 729621), (27, 675575), (45, 405345), (61, 299025), (75, 243207), (135, 135115), (183, 99675), (225, 81069), (305, 59805), (443, 41175), (549, 33225), (675, 27023), (915, 19935), (1329, 13725), (1525, 11961), (1647, 11075), (2215, 8235), (2745, 6645), (3987, 4575)]