78634520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{587}}^1$

素因数の和:812

約数の個数: 64

約数和(自身を含む): 188606880

約数和(自身を除く): 109972360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 197, 340, 394, 587, 680, 788, 985, 1174, 1576, 1970, 2348, 2935, 3349, 3940, 4696, 5870, 6698, 7880, 9979, 11740, 13396, 16745, 19958, 23480, 26792, 33490, 39916, 49895, 66980, 79832, 99790, 115639, 133960, 199580, 231278, 399160, 462556, 578195, 925112, 1156390, 1965863, 2312780, 3931726, 4625560, 7863452, 9829315, 15726904, 19658630, 39317260, 78634520]

約数ペア:

[(1, 78634520), (2, 39317260), (4, 19658630), (5, 15726904), (8, 9829315), (10, 7863452), (17, 4625560), (20, 3931726), (34, 2312780), (40, 1965863), (68, 1156390), (85, 925112), (136, 578195), (170, 462556), (197, 399160), (340, 231278), (394, 199580), (587, 133960), (680, 115639), (788, 99790), (985, 79832), (1174, 66980), (1576, 49895), (1970, 39916), (2348, 33490), (2935, 26792), (3349, 23480), (3940, 19958), (4696, 16745), (5870, 13396), (6698, 11740), (7880, 9979)]