66678220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3581}}^1$

素因数の和:3623

約数の個数: 72

約数和(自身を含む): 171506160

約数和(自身を除く): 104827940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3581, 3724, 4655, 7162, 9310, 14324, 17905, 18620, 25067, 35810, 50134, 68039, 71620, 100268, 125335, 136078, 175469, 250670, 272156, 340195, 350938, 476273, 501340, 680390, 701876, 877345, 952546, 1360780, 1754690, 1905092, 2381365, 3333911, 3509380, 4762730, 6667822, 9525460, 13335644, 16669555, 33339110, 66678220]

約数ペア:

[(1, 66678220), (2, 33339110), (4, 16669555), (5, 13335644), (7, 9525460), (10, 6667822), (14, 4762730), (19, 3509380), (20, 3333911), (28, 2381365), (35, 1905092), (38, 1754690), (49, 1360780), (70, 952546), (76, 877345), (95, 701876), (98, 680390), (133, 501340), (140, 476273), (190, 350938), (196, 340195), (245, 272156), (266, 250670), (380, 175469), (490, 136078), (532, 125335), (665, 100268), (931, 71620), (980, 68039), (1330, 50134), (1862, 35810), (2660, 25067), (3581, 18620), (3724, 17905), (4655, 14324), (7162, 9310)]