21674240

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 61810560

約数和(自身を除く): 40136320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 59, 64, 70, 80, 82, 112, 118, 128, 140, 160, 164, 205, 224, 236, 256, 280, 287, 295, 320, 328, 410, 413, 448, 472, 560, 574, 590, 640, 656, 820, 826, 896, 944, 1120, 1148, 1180, 1280, 1312, 1435, 1640, 1652, 1792, 1888, 2065, 2240, 2296, 2360, 2419, 2624, 2870, 3280, 3304, 3776, 4130, 4480, 4592, 4720, 4838, 5248, 5740, 6560, 6608, 7552, 8260, 8960, 9184, 9440, 9676, 10496, 11480, 12095, 13120, 13216, 15104, 16520, 16933, 18368, 18880, 19352, 22960, 24190, 26240, 26432, 33040, 33866, 36736, 37760, 38704, 45920, 48380, 52480, 52864, 66080, 67732, 73472, 75520, 77408, 84665, 91840, 96760, 105728, 132160, 135464, 154816, 169330, 183680, 193520, 264320, 270928, 309632, 338660, 367360, 387040, 528640, 541856, 619264, 677320, 774080, 1083712, 1354640, 1548160, 2167424, 2709280, 3096320, 4334848, 5418560, 10837120, 21674240]

約数ペア:

[(1, 21674240), (2, 10837120), (4, 5418560), (5, 4334848), (7, 3096320), (8, 2709280), (10, 2167424), (14, 1548160), (16, 1354640), (20, 1083712), (28, 774080), (32, 677320), (35, 619264), (40, 541856), (41, 528640), (56, 387040), (59, 367360), (64, 338660), (70, 309632), (80, 270928), (82, 264320), (112, 193520), (118, 183680), (128, 169330), (140, 154816), (160, 135464), (164, 132160), (205, 105728), (224, 96760), (236, 91840), (256, 84665), (280, 77408), (287, 75520), (295, 73472), (320, 67732), (328, 66080), (410, 52864), (413, 52480), (448, 48380), (472, 45920), (560, 38704), (574, 37760), (590, 36736), (640, 33866), (656, 33040), (820, 26432), (826, 26240), (896, 24190), (944, 22960), (1120, 19352), (1148, 18880), (1180, 18368), (1280, 16933), (1312, 16520), (1435, 15104), (1640, 13216), (1652, 13120), (1792, 12095), (1888, 11480), (2065, 10496), (2240, 9676), (2296, 9440), (2360, 9184), (2419, 8960), (2624, 8260), (2870, 7552), (3280, 6608), (3304, 6560), (3776, 5740), (4130, 5248), (4480, 4838), (4592, 4720)]