20606360

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6521}}^1$

素因数の和:6611

約数の個数: 32

約数和(自身を含む): 46958400

約数和(自身を除く): 26352040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6521, 13042, 26084, 32605, 52168, 65210, 130420, 260840, 515159, 1030318, 2060636, 2575795, 4121272, 5151590, 10303180, 20606360]

約数ペア:

[(1, 20606360), (2, 10303180), (4, 5151590), (5, 4121272), (8, 2575795), (10, 2060636), (20, 1030318), (40, 515159), (79, 260840), (158, 130420), (316, 65210), (395, 52168), (632, 32605), (790, 26084), (1580, 13042), (3160, 6521)]