1261390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 2532096

約数和(自身を除く): 1270706

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 313, 403, 626, 806, 1565, 2015, 3130, 4030, 4069, 8138, 9703, 19406, 20345, 40690, 48515, 97030, 126139, 252278, 630695, 1261390]

約数ペア:

[(1, 1261390), (2, 630695), (5, 252278), (10, 126139), (13, 97030), (26, 48515), (31, 40690), (62, 20345), (65, 19406), (130, 9703), (155, 8138), (310, 4069), (313, 4030), (403, 3130), (626, 2015), (806, 1565)]