18791680

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 46026792

約数和(自身を除く): 27235112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 277, 320, 424, 530, 554, 640, 848, 1060, 1108, 1280, 1385, 1696, 2120, 2216, 2770, 3392, 4240, 4432, 5540, 6784, 8480, 8864, 11080, 13568, 14681, 16960, 17728, 22160, 29362, 33920, 35456, 44320, 58724, 67840, 70912, 73405, 88640, 117448, 146810, 177280, 234896, 293620, 354560, 469792, 587240, 939584, 1174480, 1879168, 2348960, 3758336, 4697920, 9395840, 18791680]

約数ペア:

[(1, 18791680), (2, 9395840), (4, 4697920), (5, 3758336), (8, 2348960), (10, 1879168), (16, 1174480), (20, 939584), (32, 587240), (40, 469792), (53, 354560), (64, 293620), (80, 234896), (106, 177280), (128, 146810), (160, 117448), (212, 88640), (256, 73405), (265, 70912), (277, 67840), (320, 58724), (424, 44320), (530, 35456), (554, 33920), (640, 29362), (848, 22160), (1060, 17728), (1108, 16960), (1280, 14681), (1385, 13568), (1696, 11080), (2120, 8864), (2216, 8480), (2770, 6784), (3392, 5540), (4240, 4432)]