18655360

素因数分解:

$2^7\times 5^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 45190080

約数和(自身を除く): 26534720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 283, 320, 412, 515, 566, 640, 824, 1030, 1132, 1415, 1648, 2060, 2264, 2830, 3296, 4120, 4528, 5660, 6592, 8240, 9056, 11320, 13184, 16480, 18112, 22640, 29149, 32960, 36224, 45280, 58298, 65920, 90560, 116596, 145745, 181120, 233192, 291490, 466384, 582980, 932768, 1165960, 1865536, 2331920, 3731072, 4663840, 9327680, 18655360]

約数ペア:

[(1, 18655360), (2, 9327680), (4, 4663840), (5, 3731072), (8, 2331920), (10, 1865536), (16, 1165960), (20, 932768), (32, 582980), (40, 466384), (64, 291490), (80, 233192), (103, 181120), (128, 145745), (160, 116596), (206, 90560), (283, 65920), (320, 58298), (412, 45280), (515, 36224), (566, 32960), (640, 29149), (824, 22640), (1030, 18112), (1132, 16480), (1415, 13184), (1648, 11320), (2060, 9056), (2264, 8240), (2830, 6592), (3296, 5660), (4120, 4528)]