18437120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:315

約数の個数: 88

約数和(自身を含む): 47801544

約数和(自身を除く): 29364424

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 277, 320, 416, 512, 520, 554, 640, 832, 1024, 1040, 1108, 1280, 1385, 1664, 2080, 2216, 2560, 2770, 3328, 3601, 4160, 4432, 5120, 5540, 6656, 7202, 8320, 8864, 11080, 13312, 14404, 16640, 17728, 18005, 22160, 28808, 33280, 35456, 36010, 44320, 57616, 66560, 70912, 72020, 88640, 115232, 141824, 144040, 177280, 230464, 283648, 288080, 354560, 460928, 576160, 709120, 921856, 1152320, 1418240, 1843712, 2304640, 3687424, 4609280, 9218560, 18437120]

約数ペア:

[(1, 18437120), (2, 9218560), (4, 4609280), (5, 3687424), (8, 2304640), (10, 1843712), (13, 1418240), (16, 1152320), (20, 921856), (26, 709120), (32, 576160), (40, 460928), (52, 354560), (64, 288080), (65, 283648), (80, 230464), (104, 177280), (128, 144040), (130, 141824), (160, 115232), (208, 88640), (256, 72020), (260, 70912), (277, 66560), (320, 57616), (416, 44320), (512, 36010), (520, 35456), (554, 33280), (640, 28808), (832, 22160), (1024, 18005), (1040, 17728), (1108, 16640), (1280, 14404), (1385, 13312), (1664, 11080), (2080, 8864), (2216, 8320), (2560, 7202), (2770, 6656), (3328, 5540), (3601, 5120), (4160, 4432)]