890274580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79631}}^1$

素因数の和:79696

約数の個数: 48

約数和(自身を含む): 2060239104

約数和(自身を除く): 1169964524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 79631, 159262, 318524, 398155, 796310, 1035203, 1592620, 2070406, 3424133, 4140812, 5176015, 6848266, 10352030, 13696532, 17120665, 20704060, 34241330, 44513729, 68482660, 89027458, 178054916, 222568645, 445137290, 890274580]

約数ペア:

[(1, 890274580), (2, 445137290), (4, 222568645), (5, 178054916), (10, 89027458), (13, 68482660), (20, 44513729), (26, 34241330), (43, 20704060), (52, 17120665), (65, 13696532), (86, 10352030), (130, 6848266), (172, 5176015), (215, 4140812), (260, 3424133), (430, 2070406), (559, 1592620), (860, 1035203), (1118, 796310), (2236, 398155), (2795, 318524), (5590, 159262), (11180, 79631)]