20400408

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2381}}^1$

素因数の和:2417

約数の個数: 96

約数和(自身を含む): 66886560

約数和(自身を除く): 46486152

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 18, 21, 24, 28, 34, 36, 42, 51, 56, 63, 68, 72, 84, 102, 119, 126, 136, 153, 168, 204, 238, 252, 306, 357, 408, 476, 504, 612, 714, 952, 1071, 1224, 1428, 2142, 2381, 2856, 4284, 4762, 7143, 8568, 9524, 14286, 16667, 19048, 21429, 28572, 33334, 40477, 42858, 50001, 57144, 66668, 80954, 85716, 100002, 121431, 133336, 150003, 161908, 171432, 200004, 242862, 283339, 300006, 323816, 364293, 400008, 485724, 566678, 600012, 728586, 850017, 971448, 1133356, 1200024, 1457172, 1700034, 2266712, 2550051, 2914344, 3400068, 5100102, 6800136, 10200204, 20400408]

約数ペア:

[(1, 20400408), (2, 10200204), (3, 6800136), (4, 5100102), (6, 3400068), (7, 2914344), (8, 2550051), (9, 2266712), (12, 1700034), (14, 1457172), (17, 1200024), (18, 1133356), (21, 971448), (24, 850017), (28, 728586), (34, 600012), (36, 566678), (42, 485724), (51, 400008), (56, 364293), (63, 323816), (68, 300006), (72, 283339), (84, 242862), (102, 200004), (119, 171432), (126, 161908), (136, 150003), (153, 133336), (168, 121431), (204, 100002), (238, 85716), (252, 80954), (306, 66668), (357, 57144), (408, 50001), (476, 42858), (504, 40477), (612, 33334), (714, 28572), (952, 21429), (1071, 19048), (1224, 16667), (1428, 14286), (2142, 9524), (2381, 8568), (2856, 7143), (4284, 4762)]