808216720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1453}}^1$

素因数の和:1892

約数の個数: 80

約数和(自身を含む): 1995876720

約数和(自身を除く): 1187660000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 409, 680, 818, 1360, 1453, 1636, 2045, 2906, 3272, 4090, 5812, 6544, 6953, 7265, 8180, 11624, 13906, 14530, 16360, 23248, 24701, 27812, 29060, 32720, 34765, 49402, 55624, 58120, 69530, 98804, 111248, 116240, 123505, 139060, 197608, 247010, 278120, 395216, 494020, 556240, 594277, 988040, 1188554, 1976080, 2377108, 2971385, 4754216, 5942770, 9508432, 10102709, 11885540, 20205418, 23771080, 40410836, 47542160, 50513545, 80821672, 101027090, 161643344, 202054180, 404108360, 808216720]

約数ペア:

[(1, 808216720), (2, 404108360), (4, 202054180), (5, 161643344), (8, 101027090), (10, 80821672), (16, 50513545), (17, 47542160), (20, 40410836), (34, 23771080), (40, 20205418), (68, 11885540), (80, 10102709), (85, 9508432), (136, 5942770), (170, 4754216), (272, 2971385), (340, 2377108), (409, 1976080), (680, 1188554), (818, 988040), (1360, 594277), (1453, 556240), (1636, 494020), (2045, 395216), (2906, 278120), (3272, 247010), (4090, 197608), (5812, 139060), (6544, 123505), (6953, 116240), (7265, 111248), (8180, 98804), (11624, 69530), (13906, 58120), (14530, 55624), (16360, 49402), (23248, 34765), (24701, 32720), (27812, 29060)]