2646800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{509}}^1$

素因数の和:540

約数の個数: 60

約数和(自身を含む): 6861540

約数和(自身を除く): 4214740

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 509, 520, 650, 1018, 1040, 1300, 2036, 2545, 2600, 4072, 5090, 5200, 6617, 8144, 10180, 12725, 13234, 20360, 25450, 26468, 33085, 40720, 50900, 52936, 66170, 101800, 105872, 132340, 165425, 203600, 264680, 330850, 529360, 661700, 1323400, 2646800]

約数ペア:

[(1, 2646800), (2, 1323400), (4, 661700), (5, 529360), (8, 330850), (10, 264680), (13, 203600), (16, 165425), (20, 132340), (25, 105872), (26, 101800), (40, 66170), (50, 52936), (52, 50900), (65, 40720), (80, 33085), (100, 26468), (104, 25450), (130, 20360), (200, 13234), (208, 12725), (260, 10180), (325, 8144), (400, 6617), (509, 5200), (520, 5090), (650, 4072), (1018, 2600), (1040, 2545), (1300, 2036)]