641232240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:420

約数の個数: 240

約数和(自身を含む): 2222857728

約数和(自身を除く): 1581625488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 71, 80, 88, 110, 120, 121, 132, 142, 165, 176, 213, 220, 240, 242, 264, 284, 311, 330, 355, 363, 426, 440, 484, 528, 568, 605, 622, 660, 710, 726, 781, 852, 880, 933, 968, 1065, 1136, 1210, 1244, 1320, 1420, 1452, 1555, 1562, 1704, 1815, 1866, 1936, 2130, 2343, 2420, 2488, 2640, 2840, 2904, 3110, 3124, 3408, 3421, 3630, 3732, 3905, 4260, 4665, 4686, 4840, 4976, 5680, 5808, 6220, 6248, 6842, 7260, 7464, 7810, 8520, 8591, 9330, 9372, 9680, 10263, 11715, 12440, 12496, 13684, 14520, 14928, 15620, 17040, 17105, 17182, 18660, 18744, 20526, 22081, 23430, 24880, 25773, 27368, 29040, 31240, 34210, 34364, 37320, 37488, 37631, 41052, 42955, 44162, 46860, 51315, 51546, 54736, 62480, 66243, 68420, 68728, 74640, 75262, 82104, 85910, 88324, 93720, 102630, 103092, 110405, 112893, 128865, 132486, 136840, 137456, 150524, 164208, 171820, 176648, 187440, 188155, 205260, 206184, 220810, 225786, 242891, 257730, 264972, 273680, 301048, 331215, 343640, 353296, 376310, 410520, 412368, 441620, 451572, 485782, 515460, 529944, 564465, 602096, 662430, 687280, 728673, 752620, 821040, 883240, 903144, 971564, 1030920, 1059888, 1128930, 1214455, 1324860, 1457346, 1505240, 1766480, 1806288, 1943128, 2061840, 2257860, 2428910, 2649720, 2671801, 2914692, 3010480, 3643365, 3886256, 4515720, 4857820, 5299440, 5343602, 5829384, 7286730, 8015403, 9031440, 9715640, 10687204, 11658768, 13359005, 14573460, 16030806, 19431280, 21374408, 26718010, 29146920, 32061612, 40077015, 42748816, 53436020, 58293840, 64123224, 80154030, 106872040, 128246448, 160308060, 213744080, 320616120, 641232240]

約数ペア:

[(1, 641232240), (2, 320616120), (3, 213744080), (4, 160308060), (5, 128246448), (6, 106872040), (8, 80154030), (10, 64123224), (11, 58293840), (12, 53436020), (15, 42748816), (16, 40077015), (20, 32061612), (22, 29146920), (24, 26718010), (30, 21374408), (33, 19431280), (40, 16030806), (44, 14573460), (48, 13359005), (55, 11658768), (60, 10687204), (66, 9715640), (71, 9031440), (80, 8015403), (88, 7286730), (110, 5829384), (120, 5343602), (121, 5299440), (132, 4857820), (142, 4515720), (165, 3886256), (176, 3643365), (213, 3010480), (220, 2914692), (240, 2671801), (242, 2649720), (264, 2428910), (284, 2257860), (311, 2061840), (330, 1943128), (355, 1806288), (363, 1766480), (426, 1505240), (440, 1457346), (484, 1324860), (528, 1214455), (568, 1128930), (605, 1059888), (622, 1030920), (660, 971564), (710, 903144), (726, 883240), (781, 821040), (852, 752620), (880, 728673), (933, 687280), (968, 662430), (1065, 602096), (1136, 564465), (1210, 529944), (1244, 515460), (1320, 485782), (1420, 451572), (1452, 441620), (1555, 412368), (1562, 410520), (1704, 376310), (1815, 353296), (1866, 343640), (1936, 331215), (2130, 301048), (2343, 273680), (2420, 264972), (2488, 257730), (2640, 242891), (2840, 225786), (2904, 220810), (3110, 206184), (3124, 205260), (3408, 188155), (3421, 187440), (3630, 176648), (3732, 171820), (3905, 164208), (4260, 150524), (4665, 137456), (4686, 136840), (4840, 132486), (4976, 128865), (5680, 112893), (5808, 110405), (6220, 103092), (6248, 102630), (6842, 93720), (7260, 88324), (7464, 85910), (7810, 82104), (8520, 75262), (8591, 74640), (9330, 68728), (9372, 68420), (9680, 66243), (10263, 62480), (11715, 54736), (12440, 51546), (12496, 51315), (13684, 46860), (14520, 44162), (14928, 42955), (15620, 41052), (17040, 37631), (17105, 37488), (17182, 37320), (18660, 34364), (18744, 34210), (20526, 31240), (22081, 29040), (23430, 27368), (24880, 25773)]