213840680

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{19727}}^1$

素因数の和:20009

約数の個数: 32

約数和(自身を含む): 482941440

約数和(自身を除く): 269100760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 19727, 39454, 78908, 98635, 157816, 197270, 394540, 789080, 5346017, 10692034, 21384068, 26730085, 42768136, 53460170, 106920340, 213840680]

約数ペア:

[(1, 213840680), (2, 106920340), (4, 53460170), (5, 42768136), (8, 26730085), (10, 21384068), (20, 10692034), (40, 5346017), (271, 789080), (542, 394540), (1084, 197270), (1355, 157816), (2168, 98635), (2710, 78908), (5420, 39454), (10840, 19727)]