18123540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{571}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 53141088

約数和(自身を除く): 35017548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 529, 571, 690, 1058, 1142, 1380, 1587, 1713, 2116, 2284, 2645, 2855, 3174, 3426, 5290, 5710, 6348, 6852, 7935, 8565, 10580, 11420, 13133, 15870, 17130, 26266, 31740, 34260, 39399, 52532, 65665, 78798, 131330, 157596, 196995, 262660, 302059, 393990, 604118, 787980, 906177, 1208236, 1510295, 1812354, 3020590, 3624708, 4530885, 6041180, 9061770, 18123540]

約数ペア:

[(1, 18123540), (2, 9061770), (3, 6041180), (4, 4530885), (5, 3624708), (6, 3020590), (10, 1812354), (12, 1510295), (15, 1208236), (20, 906177), (23, 787980), (30, 604118), (46, 393990), (60, 302059), (69, 262660), (92, 196995), (115, 157596), (138, 131330), (230, 78798), (276, 65665), (345, 52532), (460, 39399), (529, 34260), (571, 31740), (690, 26266), (1058, 17130), (1142, 15870), (1380, 13133), (1587, 11420), (1713, 10580), (2116, 8565), (2284, 7935), (2645, 6852), (2855, 6348), (3174, 5710), (3426, 5290)]