805857920

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{3671}}^1$

素因数の和:3711

約数の個数: 128

約数和(自身を含む): 2247264000

約数和(自身を除く): 1441406080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 343, 392, 448, 490, 560, 640, 686, 784, 896, 980, 1120, 1372, 1568, 1715, 1960, 2240, 2744, 3136, 3430, 3671, 3920, 4480, 5488, 6272, 6860, 7342, 7840, 10976, 13720, 14684, 15680, 18355, 21952, 25697, 27440, 29368, 31360, 36710, 43904, 51394, 54880, 58736, 73420, 102788, 109760, 117472, 128485, 146840, 179879, 205576, 219520, 234944, 256970, 293680, 359758, 411152, 469888, 513940, 587360, 719516, 822304, 899395, 1027880, 1174720, 1259153, 1439032, 1644608, 1798790, 2055760, 2349440, 2518306, 2878064, 3289216, 3597580, 4111520, 5036612, 5756128, 6295765, 7195160, 8223040, 10073224, 11512256, 12591530, 14390320, 16446080, 20146448, 23024512, 25183060, 28780640, 40292896, 50366120, 57561280, 80585792, 100732240, 115122560, 161171584, 201464480, 402928960, 805857920]

約数ペア:

[(1, 805857920), (2, 402928960), (4, 201464480), (5, 161171584), (7, 115122560), (8, 100732240), (10, 80585792), (14, 57561280), (16, 50366120), (20, 40292896), (28, 28780640), (32, 25183060), (35, 23024512), (40, 20146448), (49, 16446080), (56, 14390320), (64, 12591530), (70, 11512256), (80, 10073224), (98, 8223040), (112, 7195160), (128, 6295765), (140, 5756128), (160, 5036612), (196, 4111520), (224, 3597580), (245, 3289216), (280, 2878064), (320, 2518306), (343, 2349440), (392, 2055760), (448, 1798790), (490, 1644608), (560, 1439032), (640, 1259153), (686, 1174720), (784, 1027880), (896, 899395), (980, 822304), (1120, 719516), (1372, 587360), (1568, 513940), (1715, 469888), (1960, 411152), (2240, 359758), (2744, 293680), (3136, 256970), (3430, 234944), (3671, 219520), (3920, 205576), (4480, 179879), (5488, 146840), (6272, 128485), (6860, 117472), (7342, 109760), (7840, 102788), (10976, 73420), (13720, 58736), (14684, 54880), (15680, 51394), (18355, 43904), (21952, 36710), (25697, 31360), (27440, 29368)]