40321040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 101243520

約数和(自身を除く): 60922480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 647, 656, 760, 779, 820, 1294, 1520, 1558, 1640, 2588, 3116, 3235, 3280, 3895, 5176, 6232, 6470, 7790, 10352, 12293, 12464, 12940, 15580, 24586, 25880, 26527, 31160, 49172, 51760, 53054, 61465, 62320, 98344, 106108, 122930, 132635, 196688, 212216, 245860, 265270, 424432, 491720, 504013, 530540, 983440, 1008026, 1061080, 2016052, 2122160, 2520065, 4032104, 5040130, 8064208, 10080260, 20160520, 40321040]

約数ペア:

[(1, 40321040), (2, 20160520), (4, 10080260), (5, 8064208), (8, 5040130), (10, 4032104), (16, 2520065), (19, 2122160), (20, 2016052), (38, 1061080), (40, 1008026), (41, 983440), (76, 530540), (80, 504013), (82, 491720), (95, 424432), (152, 265270), (164, 245860), (190, 212216), (205, 196688), (304, 132635), (328, 122930), (380, 106108), (410, 98344), (647, 62320), (656, 61465), (760, 53054), (779, 51760), (820, 49172), (1294, 31160), (1520, 26527), (1558, 25880), (1640, 24586), (2588, 15580), (3116, 12940), (3235, 12464), (3280, 12293), (3895, 10352), (5176, 7790), (6232, 6470)]