1645887720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{69623}}^1$

素因数の和:69834

約数の個数: 64

約数和(自身を含む): 4962798720

約数和(自身を除く): 3316911000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 985, 1182, 1576, 1970, 2364, 2955, 3940, 4728, 5910, 7880, 11820, 23640, 69623, 139246, 208869, 278492, 348115, 417738, 556984, 696230, 835476, 1044345, 1392460, 1670952, 2088690, 2784920, 4177380, 8354760, 13715731, 27431462, 41147193, 54862924, 68578655, 82294386, 109725848, 137157310, 164588772, 205735965, 274314620, 329177544, 411471930, 548629240, 822943860, 1645887720]

約数ペア:

[(1, 1645887720), (2, 822943860), (3, 548629240), (4, 411471930), (5, 329177544), (6, 274314620), (8, 205735965), (10, 164588772), (12, 137157310), (15, 109725848), (20, 82294386), (24, 68578655), (30, 54862924), (40, 41147193), (60, 27431462), (120, 13715731), (197, 8354760), (394, 4177380), (591, 2784920), (788, 2088690), (985, 1670952), (1182, 1392460), (1576, 1044345), (1970, 835476), (2364, 696230), (2955, 556984), (3940, 417738), (4728, 348115), (5910, 278492), (7880, 208869), (11820, 139246), (23640, 69623)]