86681270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 175827456

約数和(自身を除く): 89146186

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 137, 155, 157, 274, 310, 314, 403, 685, 785, 806, 1370, 1570, 1781, 2015, 2041, 3562, 4030, 4082, 4247, 4867, 8494, 8905, 9734, 10205, 17810, 20410, 21235, 21509, 24335, 42470, 43018, 48670, 55211, 63271, 107545, 110422, 126542, 215090, 276055, 279617, 316355, 552110, 559234, 632710, 666779, 1333558, 1398085, 2796170, 3333895, 6667790, 8668127, 17336254, 43340635, 86681270]

約数ペア:

[(1, 86681270), (2, 43340635), (5, 17336254), (10, 8668127), (13, 6667790), (26, 3333895), (31, 2796170), (62, 1398085), (65, 1333558), (130, 666779), (137, 632710), (155, 559234), (157, 552110), (274, 316355), (310, 279617), (314, 276055), (403, 215090), (685, 126542), (785, 110422), (806, 107545), (1370, 63271), (1570, 55211), (1781, 48670), (2015, 43018), (2041, 42470), (3562, 24335), (4030, 21509), (4082, 21235), (4247, 20410), (4867, 17810), (8494, 10205), (8905, 9734)]