20155827140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{797}}^1\times {\mathrm{30841}}^1$

素因数の和:31688

約数の個数: 48

約数和(自身を含む): 43415419824

約数和(自身を除く): 23259592684

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 797, 820, 1594, 3188, 3985, 7970, 15940, 30841, 32677, 61682, 65354, 123364, 130708, 154205, 163385, 308410, 326770, 616820, 653540, 1264481, 2528962, 5057924, 6322405, 12644810, 24580277, 25289620, 49160554, 98321108, 122901385, 245802770, 491605540, 1007791357, 2015582714, 4031165428, 5038956785, 10077913570, 20155827140]

約数ペア:

[(1, 20155827140), (2, 10077913570), (4, 5038956785), (5, 4031165428), (10, 2015582714), (20, 1007791357), (41, 491605540), (82, 245802770), (164, 122901385), (205, 98321108), (410, 49160554), (797, 25289620), (820, 24580277), (1594, 12644810), (3188, 6322405), (3985, 5057924), (7970, 2528962), (15940, 1264481), (30841, 653540), (32677, 616820), (61682, 326770), (65354, 308410), (123364, 163385), (130708, 154205)]