1620647560

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{6217}}^1$

素因数の和:6268

約数の個数: 128

約数和(自身を含む): 4476960000

約数和(自身を除く): 2856312440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 343, 380, 392, 490, 532, 665, 686, 760, 931, 980, 1064, 1330, 1372, 1715, 1862, 1960, 2660, 2744, 3430, 3724, 4655, 5320, 6217, 6517, 6860, 7448, 9310, 12434, 13034, 13720, 18620, 24868, 26068, 31085, 32585, 37240, 43519, 49736, 52136, 62170, 65170, 87038, 118123, 124340, 130340, 174076, 217595, 236246, 248680, 260680, 304633, 348152, 435190, 472492, 590615, 609266, 826861, 870380, 944984, 1181230, 1218532, 1523165, 1653722, 1740760, 2132431, 2362460, 2437064, 3046330, 3307444, 4134305, 4264862, 4724920, 5788027, 6092660, 6614888, 8268610, 8529724, 10662155, 11576054, 12185320, 16537220, 17059448, 21324310, 23152108, 28940135, 33074440, 40516189, 42648620, 46304216, 57880270, 81032378, 85297240, 115760540, 162064756, 202580945, 231521080, 324129512, 405161890, 810323780, 1620647560]

約数ペア:

[(1, 1620647560), (2, 810323780), (4, 405161890), (5, 324129512), (7, 231521080), (8, 202580945), (10, 162064756), (14, 115760540), (19, 85297240), (20, 81032378), (28, 57880270), (35, 46304216), (38, 42648620), (40, 40516189), (49, 33074440), (56, 28940135), (70, 23152108), (76, 21324310), (95, 17059448), (98, 16537220), (133, 12185320), (140, 11576054), (152, 10662155), (190, 8529724), (196, 8268610), (245, 6614888), (266, 6092660), (280, 5788027), (343, 4724920), (380, 4264862), (392, 4134305), (490, 3307444), (532, 3046330), (665, 2437064), (686, 2362460), (760, 2132431), (931, 1740760), (980, 1653722), (1064, 1523165), (1330, 1218532), (1372, 1181230), (1715, 944984), (1862, 870380), (1960, 826861), (2660, 609266), (2744, 590615), (3430, 472492), (3724, 435190), (4655, 348152), (5320, 304633), (6217, 260680), (6517, 248680), (6860, 236246), (7448, 217595), (9310, 174076), (12434, 130340), (13034, 124340), (13720, 118123), (18620, 87038), (24868, 65170), (26068, 62170), (31085, 52136), (32585, 49736), (37240, 43519)]