68728790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 142720704

約数和(自身を除く): 73991914

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 137, 170, 221, 227, 274, 442, 454, 685, 1105, 1135, 1370, 1781, 2210, 2270, 2329, 2951, 3562, 3859, 4658, 5902, 7718, 8905, 11645, 14755, 17810, 19295, 23290, 29510, 30277, 31099, 38590, 50167, 60554, 62198, 100334, 151385, 155495, 250835, 302770, 310990, 404287, 501670, 528683, 808574, 1057366, 2021435, 2643415, 4042870, 5286830, 6872879, 13745758, 34364395, 68728790]

約数ペア:

[(1, 68728790), (2, 34364395), (5, 13745758), (10, 6872879), (13, 5286830), (17, 4042870), (26, 2643415), (34, 2021435), (65, 1057366), (85, 808574), (130, 528683), (137, 501670), (170, 404287), (221, 310990), (227, 302770), (274, 250835), (442, 155495), (454, 151385), (685, 100334), (1105, 62198), (1135, 60554), (1370, 50167), (1781, 38590), (2210, 31099), (2270, 30277), (2329, 29510), (2951, 23290), (3562, 19295), (3859, 17810), (4658, 14755), (5902, 11645), (7718, 8905)]