205020120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2081}}^1$

素因数の和:2916

約数の個数: 64

約数和(自身を含む): 616105440

約数和(自身を除く): 411085320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 821, 1642, 2081, 2463, 3284, 4105, 4162, 4926, 6243, 6568, 8210, 8324, 9852, 10405, 12315, 12486, 16420, 16648, 19704, 20810, 24630, 24972, 31215, 32840, 41620, 49260, 49944, 62430, 83240, 98520, 124860, 249720, 1708501, 3417002, 5125503, 6834004, 8542505, 10251006, 13668008, 17085010, 20502012, 25627515, 34170020, 41004024, 51255030, 68340040, 102510060, 205020120]

約数ペア:

[(1, 205020120), (2, 102510060), (3, 68340040), (4, 51255030), (5, 41004024), (6, 34170020), (8, 25627515), (10, 20502012), (12, 17085010), (15, 13668008), (20, 10251006), (24, 8542505), (30, 6834004), (40, 5125503), (60, 3417002), (120, 1708501), (821, 249720), (1642, 124860), (2081, 98520), (2463, 83240), (3284, 62430), (4105, 49944), (4162, 49260), (4926, 41620), (6243, 32840), (6568, 31215), (8210, 24972), (8324, 24630), (9852, 20810), (10405, 19704), (12315, 16648), (12486, 16420)]