18581780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 46232928

約数和(自身を除く): 27651148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 283, 335, 469, 490, 566, 670, 938, 980, 1132, 1340, 1415, 1876, 1981, 2345, 2830, 3283, 3962, 4690, 5660, 6566, 7924, 9380, 9905, 13132, 13867, 16415, 18961, 19810, 27734, 32830, 37922, 39620, 55468, 65660, 69335, 75844, 94805, 132727, 138670, 189610, 265454, 277340, 379220, 530908, 663635, 929089, 1327270, 1858178, 2654540, 3716356, 4645445, 9290890, 18581780]

約数ペア:

[(1, 18581780), (2, 9290890), (4, 4645445), (5, 3716356), (7, 2654540), (10, 1858178), (14, 1327270), (20, 929089), (28, 663635), (35, 530908), (49, 379220), (67, 277340), (70, 265454), (98, 189610), (134, 138670), (140, 132727), (196, 94805), (245, 75844), (268, 69335), (283, 65660), (335, 55468), (469, 39620), (490, 37922), (566, 32830), (670, 27734), (938, 19810), (980, 18961), (1132, 16415), (1340, 13867), (1415, 13132), (1876, 9905), (1981, 9380), (2345, 7924), (2830, 6566), (3283, 5660), (3962, 4690)]