18442240

素因数分解:

$2^{11}\times 5^1\times {\mathrm{1801}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 44275140

約数和(自身を除く): 25832900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1801, 2048, 2560, 3602, 5120, 7204, 9005, 10240, 14408, 18010, 28816, 36020, 57632, 72040, 115264, 144080, 230528, 288160, 461056, 576320, 922112, 1152640, 1844224, 2305280, 3688448, 4610560, 9221120, 18442240]

約数ペア:

[(1, 18442240), (2, 9221120), (4, 4610560), (5, 3688448), (8, 2305280), (10, 1844224), (16, 1152640), (20, 922112), (32, 576320), (40, 461056), (64, 288160), (80, 230528), (128, 144080), (160, 115264), (256, 72040), (320, 57632), (512, 36020), (640, 28816), (1024, 18010), (1280, 14408), (1801, 10240), (2048, 9005), (2560, 7204), (3602, 5120)]