20177620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1831}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 46166400

約数和(自身を除く): 25988780

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1831, 2204, 2755, 3662, 5510, 7324, 9155, 11020, 18310, 34789, 36620, 53099, 69578, 106198, 139156, 173945, 212396, 265495, 347890, 530990, 695780, 1008881, 1061980, 2017762, 4035524, 5044405, 10088810, 20177620]

約数ペア:

[(1, 20177620), (2, 10088810), (4, 5044405), (5, 4035524), (10, 2017762), (19, 1061980), (20, 1008881), (29, 695780), (38, 530990), (58, 347890), (76, 265495), (95, 212396), (116, 173945), (145, 139156), (190, 106198), (290, 69578), (380, 53099), (551, 36620), (580, 34789), (1102, 18310), (1831, 11020), (2204, 9155), (2755, 7324), (3662, 5510)]