263713840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5897}}^1$

素因数の和:5966

約数の個数: 80

約数和(自身を含む): 675769248

約数和(自身を除く): 412055408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 4472, 5590, 5897, 8944, 11180, 11794, 22360, 23588, 29485, 44720, 47176, 58970, 76661, 94352, 117940, 153322, 235880, 253571, 306644, 383305, 471760, 507142, 613288, 766610, 1014284, 1226576, 1267855, 1533220, 2028568, 2535710, 3066440, 3296423, 4057136, 5071420, 6132880, 6592846, 10142840, 13185692, 16482115, 20285680, 26371384, 32964230, 52742768, 65928460, 131856920, 263713840]

約数ペア:

[(1, 263713840), (2, 131856920), (4, 65928460), (5, 52742768), (8, 32964230), (10, 26371384), (13, 20285680), (16, 16482115), (20, 13185692), (26, 10142840), (40, 6592846), (43, 6132880), (52, 5071420), (65, 4057136), (80, 3296423), (86, 3066440), (104, 2535710), (130, 2028568), (172, 1533220), (208, 1267855), (215, 1226576), (260, 1014284), (344, 766610), (430, 613288), (520, 507142), (559, 471760), (688, 383305), (860, 306644), (1040, 253571), (1118, 235880), (1720, 153322), (2236, 117940), (2795, 94352), (3440, 76661), (4472, 58970), (5590, 47176), (5897, 44720), (8944, 29485), (11180, 23588), (11794, 22360)]