680264780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1579}}^1\times {\mathrm{1657}}^1$

素因数の和:3258

約数の個数: 48

約数和(自身を含む): 1540348320

約数和(自身を除く): 860083540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1579, 1657, 3158, 3314, 6316, 6628, 7895, 8285, 15790, 16570, 20527, 21541, 31580, 33140, 41054, 43082, 82108, 86164, 102635, 107705, 205270, 215410, 410540, 430820, 2616403, 5232806, 10465612, 13082015, 26164030, 34013239, 52328060, 68026478, 136052956, 170066195, 340132390, 680264780]

約数ペア:

[(1, 680264780), (2, 340132390), (4, 170066195), (5, 136052956), (10, 68026478), (13, 52328060), (20, 34013239), (26, 26164030), (52, 13082015), (65, 10465612), (130, 5232806), (260, 2616403), (1579, 430820), (1657, 410540), (3158, 215410), (3314, 205270), (6316, 107705), (6628, 102635), (7895, 86164), (8285, 82108), (15790, 43082), (16570, 41054), (20527, 33140), (21541, 31580)]