20639164920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{30011}}^1$

素因数の和:30557

約数の個数: 128

約数和(自身を含む): 67678260480

約数和(自身を除く): 47039095560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 521, 660, 1042, 1320, 1563, 2084, 2605, 3126, 4168, 5210, 5731, 6252, 7815, 10420, 11462, 12504, 15630, 17193, 20840, 22924, 28655, 30011, 31260, 34386, 45848, 57310, 60022, 62520, 68772, 85965, 90033, 114620, 120044, 137544, 150055, 171930, 180066, 229240, 240088, 300110, 330121, 343860, 360132, 450165, 600220, 660242, 687720, 720264, 900330, 990363, 1200440, 1320484, 1650605, 1800660, 1980726, 2640968, 3301210, 3601320, 3961452, 4951815, 6602420, 7922904, 9903630, 13204840, 15635731, 19807260, 31271462, 39614520, 46907193, 62542924, 78178655, 93814386, 125085848, 156357310, 171993041, 187628772, 234535965, 312714620, 343986082, 375257544, 469071930, 515979123, 625429240, 687972164, 859965205, 938143860, 1031958246, 1375944328, 1719930410, 1876287720, 2063916492, 2579895615, 3439860820, 4127832984, 5159791230, 6879721640, 10319582460, 20639164920]

約数ペア:

[(1, 20639164920), (2, 10319582460), (3, 6879721640), (4, 5159791230), (5, 4127832984), (6, 3439860820), (8, 2579895615), (10, 2063916492), (11, 1876287720), (12, 1719930410), (15, 1375944328), (20, 1031958246), (22, 938143860), (24, 859965205), (30, 687972164), (33, 625429240), (40, 515979123), (44, 469071930), (55, 375257544), (60, 343986082), (66, 312714620), (88, 234535965), (110, 187628772), (120, 171993041), (132, 156357310), (165, 125085848), (220, 93814386), (264, 78178655), (330, 62542924), (440, 46907193), (521, 39614520), (660, 31271462), (1042, 19807260), (1320, 15635731), (1563, 13204840), (2084, 9903630), (2605, 7922904), (3126, 6602420), (4168, 4951815), (5210, 3961452), (5731, 3601320), (6252, 3301210), (7815, 2640968), (10420, 1980726), (11462, 1800660), (12504, 1650605), (15630, 1320484), (17193, 1200440), (20840, 990363), (22924, 900330), (28655, 720264), (30011, 687720), (31260, 660242), (34386, 600220), (45848, 450165), (57310, 360132), (60022, 343860), (62520, 330121), (68772, 300110), (85965, 240088), (90033, 229240), (114620, 180066), (120044, 171930), (137544, 150055)]