18191120

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7841}}^1$

素因数の和:7883

約数の個数: 40

約数和(自身を含む): 43758360

約数和(自身を除く): 25567240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 7841, 15682, 31364, 39205, 62728, 78410, 125456, 156820, 227389, 313640, 454778, 627280, 909556, 1136945, 1819112, 2273890, 3638224, 4547780, 9095560, 18191120]

約数ペア:

[(1, 18191120), (2, 9095560), (4, 4547780), (5, 3638224), (8, 2273890), (10, 1819112), (16, 1136945), (20, 909556), (29, 627280), (40, 454778), (58, 313640), (80, 227389), (116, 156820), (145, 125456), (232, 78410), (290, 62728), (464, 39205), (580, 31364), (1160, 15682), (2320, 7841)]