78109070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 157671360

約数和(自身を除く): 79562290

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 89, 130, 157, 178, 215, 314, 430, 445, 559, 785, 890, 1118, 1157, 1570, 2041, 2314, 2795, 3827, 4082, 5590, 5785, 6751, 7654, 10205, 11570, 13502, 13973, 19135, 20410, 27946, 33755, 38270, 49751, 67510, 69865, 87763, 99502, 139730, 175526, 181649, 248755, 363298, 438815, 497510, 600839, 877630, 908245, 1201678, 1816490, 3004195, 6008390, 7810907, 15621814, 39054535, 78109070]

約数ペア:

[(1, 78109070), (2, 39054535), (5, 15621814), (10, 7810907), (13, 6008390), (26, 3004195), (43, 1816490), (65, 1201678), (86, 908245), (89, 877630), (130, 600839), (157, 497510), (178, 438815), (215, 363298), (314, 248755), (430, 181649), (445, 175526), (559, 139730), (785, 99502), (890, 87763), (1118, 69865), (1157, 67510), (1570, 49751), (2041, 38270), (2314, 33755), (2795, 27946), (3827, 20410), (4082, 19135), (5590, 13973), (5785, 13502), (6751, 11570), (7654, 10205)]