391338440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:751

約数の個数: 96

約数和(自身を含む): 953399160

約数和(自身を除く): 562060720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 361, 380, 410, 661, 722, 760, 779, 820, 1322, 1444, 1558, 1640, 1805, 2644, 2888, 3116, 3305, 3610, 3895, 5288, 6232, 6610, 7220, 7790, 12559, 13220, 14440, 14801, 15580, 25118, 26440, 27101, 29602, 31160, 50236, 54202, 59204, 62795, 74005, 100472, 108404, 118408, 125590, 135505, 148010, 216808, 238621, 251180, 271010, 296020, 477242, 502360, 514919, 542020, 592040, 954484, 1029838, 1084040, 1193105, 1908968, 2059676, 2386210, 2574595, 4119352, 4772420, 5149190, 9544840, 9783461, 10298380, 19566922, 20596760, 39133844, 48917305, 78267688, 97834610, 195669220, 391338440]

約数ペア:

[(1, 391338440), (2, 195669220), (4, 97834610), (5, 78267688), (8, 48917305), (10, 39133844), (19, 20596760), (20, 19566922), (38, 10298380), (40, 9783461), (41, 9544840), (76, 5149190), (82, 4772420), (95, 4119352), (152, 2574595), (164, 2386210), (190, 2059676), (205, 1908968), (328, 1193105), (361, 1084040), (380, 1029838), (410, 954484), (661, 592040), (722, 542020), (760, 514919), (779, 502360), (820, 477242), (1322, 296020), (1444, 271010), (1558, 251180), (1640, 238621), (1805, 216808), (2644, 148010), (2888, 135505), (3116, 125590), (3305, 118408), (3610, 108404), (3895, 100472), (5288, 74005), (6232, 62795), (6610, 59204), (7220, 54202), (7790, 50236), (12559, 31160), (13220, 29602), (14440, 27101), (14801, 26440), (15580, 25118)]