28856360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{263}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 70519680

約数和(自身を除く): 41663320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 211, 260, 263, 422, 520, 526, 844, 1052, 1055, 1315, 1688, 2104, 2110, 2630, 2743, 3419, 4220, 5260, 5486, 6838, 8440, 10520, 10972, 13676, 13715, 17095, 21944, 27352, 27430, 34190, 54860, 55493, 68380, 109720, 110986, 136760, 221972, 277465, 443944, 554930, 721409, 1109860, 1442818, 2219720, 2885636, 3607045, 5771272, 7214090, 14428180, 28856360]

約数ペア:

[(1, 28856360), (2, 14428180), (4, 7214090), (5, 5771272), (8, 3607045), (10, 2885636), (13, 2219720), (20, 1442818), (26, 1109860), (40, 721409), (52, 554930), (65, 443944), (104, 277465), (130, 221972), (211, 136760), (260, 110986), (263, 109720), (422, 68380), (520, 55493), (526, 54860), (844, 34190), (1052, 27430), (1055, 27352), (1315, 21944), (1688, 17095), (2104, 13715), (2110, 13676), (2630, 10972), (2743, 10520), (3419, 8440), (4220, 6838), (5260, 5486)]