77642020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2767}}^1$

素因数の和:2860

約数の個数: 48

約数和(自身を含む): 172988928

約数和(自身を除く): 95346908

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 610, 1220, 1403, 2767, 2806, 5534, 5612, 7015, 11068, 13835, 14030, 27670, 28060, 55340, 63641, 127282, 168787, 254564, 318205, 337574, 636410, 675148, 843935, 1272820, 1687870, 3375740, 3882101, 7764202, 15528404, 19410505, 38821010, 77642020]

約数ペア:

[(1, 77642020), (2, 38821010), (4, 19410505), (5, 15528404), (10, 7764202), (20, 3882101), (23, 3375740), (46, 1687870), (61, 1272820), (92, 843935), (115, 675148), (122, 636410), (230, 337574), (244, 318205), (305, 254564), (460, 168787), (610, 127282), (1220, 63641), (1403, 55340), (2767, 28060), (2806, 27670), (5534, 14030), (5612, 13835), (7015, 11068)]