18215960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{971}}^1$

素因数の和:1056

約数の個数: 64

約数和(自身を含む): 47589120

約数和(自身を除く): 29373160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 971, 1340, 1876, 1942, 2345, 2680, 3752, 3884, 4690, 4855, 6797, 7768, 9380, 9710, 13594, 18760, 19420, 27188, 33985, 38840, 54376, 65057, 67970, 130114, 135940, 260228, 271880, 325285, 455399, 520456, 650570, 910798, 1301140, 1821596, 2276995, 2602280, 3643192, 4553990, 9107980, 18215960]

約数ペア:

[(1, 18215960), (2, 9107980), (4, 4553990), (5, 3643192), (7, 2602280), (8, 2276995), (10, 1821596), (14, 1301140), (20, 910798), (28, 650570), (35, 520456), (40, 455399), (56, 325285), (67, 271880), (70, 260228), (134, 135940), (140, 130114), (268, 67970), (280, 65057), (335, 54376), (469, 38840), (536, 33985), (670, 27188), (938, 19420), (971, 18760), (1340, 13594), (1876, 9710), (1942, 9380), (2345, 7768), (2680, 6797), (3752, 4855), (3884, 4690)]