81687652

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 155675520

約数和(自身を除く): 73987868

約数列:

[1, 2, 4, 17, 34, 68, 103, 107, 109, 206, 214, 218, 412, 428, 436, 1751, 1819, 1853, 3502, 3638, 3706, 7004, 7276, 7412, 11021, 11227, 11663, 22042, 22454, 23326, 44084, 44908, 46652, 187357, 190859, 198271, 374714, 381718, 396542, 749428, 763436, 793084, 1201289, 2402578, 4805156, 20421913, 40843826, 81687652]

約数ペア:

[(1, 81687652), (2, 40843826), (4, 20421913), (17, 4805156), (34, 2402578), (68, 1201289), (103, 793084), (107, 763436), (109, 749428), (206, 396542), (214, 381718), (218, 374714), (412, 198271), (428, 190859), (436, 187357), (1751, 46652), (1819, 44908), (1853, 44084), (3502, 23326), (3638, 22454), (3706, 22042), (7004, 11663), (7276, 11227), (7412, 11021)]