8414020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 18740736

約数和(自身を除く): 10326716

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 331, 410, 620, 662, 820, 1271, 1324, 1655, 2542, 3310, 5084, 6355, 6620, 10261, 12710, 13571, 20522, 25420, 27142, 41044, 51305, 54284, 67855, 102610, 135710, 205220, 271420, 420701, 841402, 1682804, 2103505, 4207010, 8414020]

約数ペア:

[(1, 8414020), (2, 4207010), (4, 2103505), (5, 1682804), (10, 841402), (20, 420701), (31, 271420), (41, 205220), (62, 135710), (82, 102610), (124, 67855), (155, 54284), (164, 51305), (205, 41044), (310, 27142), (331, 25420), (410, 20522), (620, 13571), (662, 12710), (820, 10261), (1271, 6620), (1324, 6355), (1655, 5084), (2542, 3310)]