20459770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{419}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 18549830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 257, 419, 514, 838, 1285, 2095, 2570, 4190, 4883, 7961, 9766, 15922, 24415, 39805, 48830, 79610, 107683, 215366, 538415, 1076830, 2045977, 4091954, 10229885, 20459770]

約数ペア:

[(1, 20459770), (2, 10229885), (5, 4091954), (10, 2045977), (19, 1076830), (38, 538415), (95, 215366), (190, 107683), (257, 79610), (419, 48830), (514, 39805), (838, 24415), (1285, 15922), (2095, 9766), (2570, 7961), (4190, 4883)]