66856915

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 87494400

約数和(自身を除く): 20637485

約数列:

[1, 5, 19, 61, 83, 95, 139, 305, 415, 695, 1159, 1577, 2641, 5063, 5795, 7885, 8479, 11537, 13205, 25315, 42395, 57685, 96197, 161101, 219203, 480985, 703757, 805505, 1096015, 3518785, 13371383, 66856915]

約数ペア:

[(1, 66856915), (5, 13371383), (19, 3518785), (61, 1096015), (83, 805505), (95, 703757), (139, 480985), (305, 219203), (415, 161101), (695, 96197), (1159, 57685), (1577, 42395), (2641, 25315), (5063, 13205), (5795, 11537), (7885, 8479)]