1621617280

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:498

約数の個数: 128

約数和(自身を含む): 3976335360

約数和(自身を除く): 2354718080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 127, 128, 142, 160, 254, 281, 284, 320, 355, 508, 562, 568, 635, 640, 710, 1016, 1124, 1136, 1270, 1405, 1420, 2032, 2248, 2272, 2540, 2810, 2840, 4064, 4496, 4544, 5080, 5620, 5680, 8128, 8992, 9017, 9088, 10160, 11240, 11360, 16256, 17984, 18034, 19951, 20320, 22480, 22720, 35687, 35968, 36068, 39902, 40640, 44960, 45085, 45440, 71374, 72136, 79804, 81280, 89920, 90170, 99755, 142748, 144272, 159608, 178435, 179840, 180340, 199510, 285496, 288544, 319216, 356870, 360680, 399020, 570992, 577088, 638432, 713740, 721360, 798040, 1141984, 1154176, 1276864, 1427480, 1442720, 1596080, 2283968, 2533777, 2553728, 2854960, 2885440, 3192160, 4567936, 5067554, 5709920, 5770880, 6384320, 10135108, 11419840, 12668885, 12768640, 20270216, 22839680, 25337770, 40540432, 50675540, 81080864, 101351080, 162161728, 202702160, 324323456, 405404320, 810808640, 1621617280]

約数ペア:

[(1, 1621617280), (2, 810808640), (4, 405404320), (5, 324323456), (8, 202702160), (10, 162161728), (16, 101351080), (20, 81080864), (32, 50675540), (40, 40540432), (64, 25337770), (71, 22839680), (80, 20270216), (127, 12768640), (128, 12668885), (142, 11419840), (160, 10135108), (254, 6384320), (281, 5770880), (284, 5709920), (320, 5067554), (355, 4567936), (508, 3192160), (562, 2885440), (568, 2854960), (635, 2553728), (640, 2533777), (710, 2283968), (1016, 1596080), (1124, 1442720), (1136, 1427480), (1270, 1276864), (1405, 1154176), (1420, 1141984), (2032, 798040), (2248, 721360), (2272, 713740), (2540, 638432), (2810, 577088), (2840, 570992), (4064, 399020), (4496, 360680), (4544, 356870), (5080, 319216), (5620, 288544), (5680, 285496), (8128, 199510), (8992, 180340), (9017, 179840), (9088, 178435), (10160, 159608), (11240, 144272), (11360, 142748), (16256, 99755), (17984, 90170), (18034, 89920), (19951, 81280), (20320, 79804), (22480, 72136), (22720, 71374), (35687, 45440), (35968, 45085), (36068, 44960), (39902, 40640)]