18259840

素因数分解:

$2^7\times 5^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 44235360

約数和(自身を除く): 25975520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 277, 320, 412, 515, 554, 640, 824, 1030, 1108, 1385, 1648, 2060, 2216, 2770, 3296, 4120, 4432, 5540, 6592, 8240, 8864, 11080, 13184, 16480, 17728, 22160, 28531, 32960, 35456, 44320, 57062, 65920, 88640, 114124, 142655, 177280, 228248, 285310, 456496, 570620, 912992, 1141240, 1825984, 2282480, 3651968, 4564960, 9129920, 18259840]

約数ペア:

[(1, 18259840), (2, 9129920), (4, 4564960), (5, 3651968), (8, 2282480), (10, 1825984), (16, 1141240), (20, 912992), (32, 570620), (40, 456496), (64, 285310), (80, 228248), (103, 177280), (128, 142655), (160, 114124), (206, 88640), (277, 65920), (320, 57062), (412, 44320), (515, 35456), (554, 32960), (640, 28531), (824, 22160), (1030, 17728), (1108, 16480), (1385, 13184), (1648, 11080), (2060, 8864), (2216, 8240), (2770, 6592), (3296, 5540), (4120, 4432)]