56789720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109211}}^1$

素因数の和:109235

約数の個数: 32

約数和(自身を含む): 137607120

約数和(自身を除く): 80817400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 109211, 218422, 436844, 546055, 873688, 1092110, 1419743, 2184220, 2839486, 4368440, 5678972, 7098715, 11357944, 14197430, 28394860, 56789720]

約数ペア:

[(1, 56789720), (2, 28394860), (4, 14197430), (5, 11357944), (8, 7098715), (10, 5678972), (13, 4368440), (20, 2839486), (26, 2184220), (40, 1419743), (52, 1092110), (65, 873688), (104, 546055), (130, 436844), (260, 218422), (520, 109211)]