21454080

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 70836864

約数和(自身を除く): 49382784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 151, 160, 185, 192, 222, 240, 256, 296, 302, 320, 370, 384, 444, 453, 480, 555, 592, 604, 640, 740, 755, 768, 888, 906, 960, 1110, 1184, 1208, 1280, 1480, 1510, 1776, 1812, 1920, 2220, 2265, 2368, 2416, 2960, 3020, 3552, 3624, 3840, 4440, 4530, 4736, 4832, 5587, 5920, 6040, 7104, 7248, 8880, 9060, 9472, 9664, 11174, 11840, 12080, 14208, 14496, 16761, 17760, 18120, 19328, 22348, 23680, 24160, 27935, 28416, 28992, 33522, 35520, 36240, 38656, 44696, 47360, 48320, 55870, 57984, 67044, 71040, 72480, 83805, 89392, 96640, 111740, 115968, 134088, 142080, 144960, 167610, 178784, 193280, 223480, 268176, 289920, 335220, 357568, 446960, 536352, 579840, 670440, 715136, 893920, 1072704, 1340880, 1430272, 1787840, 2145408, 2681760, 3575680, 4290816, 5363520, 7151360, 10727040, 21454080]

約数ペア:

[(1, 21454080), (2, 10727040), (3, 7151360), (4, 5363520), (5, 4290816), (6, 3575680), (8, 2681760), (10, 2145408), (12, 1787840), (15, 1430272), (16, 1340880), (20, 1072704), (24, 893920), (30, 715136), (32, 670440), (37, 579840), (40, 536352), (48, 446960), (60, 357568), (64, 335220), (74, 289920), (80, 268176), (96, 223480), (111, 193280), (120, 178784), (128, 167610), (148, 144960), (151, 142080), (160, 134088), (185, 115968), (192, 111740), (222, 96640), (240, 89392), (256, 83805), (296, 72480), (302, 71040), (320, 67044), (370, 57984), (384, 55870), (444, 48320), (453, 47360), (480, 44696), (555, 38656), (592, 36240), (604, 35520), (640, 33522), (740, 28992), (755, 28416), (768, 27935), (888, 24160), (906, 23680), (960, 22348), (1110, 19328), (1184, 18120), (1208, 17760), (1280, 16761), (1480, 14496), (1510, 14208), (1776, 12080), (1812, 11840), (1920, 11174), (2220, 9664), (2265, 9472), (2368, 9060), (2416, 8880), (2960, 7248), (3020, 7104), (3552, 6040), (3624, 5920), (3840, 5587), (4440, 4832), (4530, 4736)]