1281948640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{27917}}^1$

素因数の和:27980

約数の個数: 96

約数和(自身を含む): 3545809344

約数和(自身を除く): 2263860704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 70, 80, 82, 112, 140, 160, 164, 205, 224, 280, 287, 328, 410, 560, 574, 656, 820, 1120, 1148, 1312, 1435, 1640, 2296, 2870, 3280, 4592, 5740, 6560, 9184, 11480, 22960, 27917, 45920, 55834, 111668, 139585, 195419, 223336, 279170, 390838, 446672, 558340, 781676, 893344, 977095, 1116680, 1144597, 1563352, 1954190, 2233360, 2289194, 3126704, 3908380, 4466720, 4578388, 5722985, 6253408, 7816760, 8012179, 9156776, 11445970, 15633520, 16024358, 18313552, 22891940, 31267040, 32048716, 36627104, 40060895, 45783880, 64097432, 80121790, 91567760, 128194864, 160243580, 183135520, 256389728, 320487160, 640974320, 1281948640]

約数ペア:

[(1, 1281948640), (2, 640974320), (4, 320487160), (5, 256389728), (7, 183135520), (8, 160243580), (10, 128194864), (14, 91567760), (16, 80121790), (20, 64097432), (28, 45783880), (32, 40060895), (35, 36627104), (40, 32048716), (41, 31267040), (56, 22891940), (70, 18313552), (80, 16024358), (82, 15633520), (112, 11445970), (140, 9156776), (160, 8012179), (164, 7816760), (205, 6253408), (224, 5722985), (280, 4578388), (287, 4466720), (328, 3908380), (410, 3126704), (560, 2289194), (574, 2233360), (656, 1954190), (820, 1563352), (1120, 1144597), (1148, 1116680), (1312, 977095), (1435, 893344), (1640, 781676), (2296, 558340), (2870, 446672), (3280, 390838), (4592, 279170), (5740, 223336), (6560, 195419), (9184, 139585), (11480, 111668), (22960, 55834), (27917, 45920)]