81778690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:427

約数の個数: 64

約数和(自身を含む): 174493440

約数和(自身を除く): 92714750

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 101, 202, 215, 269, 301, 430, 505, 538, 602, 707, 1010, 1345, 1414, 1505, 1883, 2690, 3010, 3535, 3766, 4343, 7070, 8686, 9415, 11567, 18830, 21715, 23134, 27169, 30401, 43430, 54338, 57835, 60802, 80969, 115670, 135845, 152005, 161938, 190183, 271690, 304010, 380366, 404845, 809690, 950915, 1168267, 1901830, 2336534, 5841335, 8177869, 11682670, 16355738, 40889345, 81778690]

約数ペア:

[(1, 81778690), (2, 40889345), (5, 16355738), (7, 11682670), (10, 8177869), (14, 5841335), (35, 2336534), (43, 1901830), (70, 1168267), (86, 950915), (101, 809690), (202, 404845), (215, 380366), (269, 304010), (301, 271690), (430, 190183), (505, 161938), (538, 152005), (602, 135845), (707, 115670), (1010, 80969), (1345, 60802), (1414, 57835), (1505, 54338), (1883, 43430), (2690, 30401), (3010, 27169), (3535, 23134), (3766, 21715), (4343, 18830), (7070, 11567), (8686, 9415)]