388907960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1783}}^1$

素因数の和:1861

約数の個数: 128

約数和(自身を含む): 1078963200

約数和(自身を除く): 690055240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 41, 56, 70, 76, 82, 95, 133, 140, 152, 164, 190, 205, 266, 280, 287, 328, 380, 410, 532, 574, 665, 760, 779, 820, 1064, 1148, 1330, 1435, 1558, 1640, 1783, 2296, 2660, 2870, 3116, 3566, 3895, 5320, 5453, 5740, 6232, 7132, 7790, 8915, 10906, 11480, 12481, 14264, 15580, 17830, 21812, 24962, 27265, 31160, 33877, 35660, 43624, 49924, 54530, 62405, 67754, 71320, 73103, 99848, 109060, 124810, 135508, 146206, 169385, 218120, 237139, 249620, 271016, 292412, 338770, 365515, 474278, 499240, 511721, 584824, 677540, 731030, 948556, 1023442, 1185695, 1355080, 1388957, 1462060, 1897112, 2046884, 2371390, 2558605, 2777914, 2924120, 4093768, 4742780, 5117210, 5555828, 6944785, 9485560, 9722699, 10234420, 11111656, 13889570, 19445398, 20468840, 27779140, 38890796, 48613495, 55558280, 77781592, 97226990, 194453980, 388907960]

約数ペア:

[(1, 388907960), (2, 194453980), (4, 97226990), (5, 77781592), (7, 55558280), (8, 48613495), (10, 38890796), (14, 27779140), (19, 20468840), (20, 19445398), (28, 13889570), (35, 11111656), (38, 10234420), (40, 9722699), (41, 9485560), (56, 6944785), (70, 5555828), (76, 5117210), (82, 4742780), (95, 4093768), (133, 2924120), (140, 2777914), (152, 2558605), (164, 2371390), (190, 2046884), (205, 1897112), (266, 1462060), (280, 1388957), (287, 1355080), (328, 1185695), (380, 1023442), (410, 948556), (532, 731030), (574, 677540), (665, 584824), (760, 511721), (779, 499240), (820, 474278), (1064, 365515), (1148, 338770), (1330, 292412), (1435, 271016), (1558, 249620), (1640, 237139), (1783, 218120), (2296, 169385), (2660, 146206), (2870, 135508), (3116, 124810), (3566, 109060), (3895, 99848), (5320, 73103), (5453, 71320), (5740, 67754), (6232, 62405), (7132, 54530), (7790, 49924), (8915, 43624), (10906, 35660), (11480, 33877), (12481, 31160), (14264, 27265), (15580, 24962), (17830, 21812)]