890751020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{12479}}^1$

素因数の和:12614

約数の個数: 48

約数和(自身を含む): 1937295360

約数和(自身を除く): 1046544340

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 332, 415, 430, 830, 860, 1660, 3569, 7138, 12479, 14276, 17845, 24958, 35690, 49916, 62395, 71380, 124790, 249580, 536597, 1035757, 1073194, 2071514, 2146388, 2682985, 4143028, 5178785, 5365970, 10357570, 10731940, 20715140, 44537551, 89075102, 178150204, 222687755, 445375510, 890751020]

約数ペア:

[(1, 890751020), (2, 445375510), (4, 222687755), (5, 178150204), (10, 89075102), (20, 44537551), (43, 20715140), (83, 10731940), (86, 10357570), (166, 5365970), (172, 5178785), (215, 4143028), (332, 2682985), (415, 2146388), (430, 2071514), (830, 1073194), (860, 1035757), (1660, 536597), (3569, 249580), (7138, 124790), (12479, 71380), (14276, 62395), (17845, 49916), (24958, 35690)]