81688390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3877}}^1$

素因数の和:3941

約数の個数: 48

約数和(自身を含む): 175068432

約数和(自身を除く): 93380042

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 1505, 2107, 3010, 3877, 4214, 7754, 10535, 19385, 21070, 27139, 38770, 54278, 135695, 166711, 189973, 271390, 333422, 379946, 833555, 949865, 1166977, 1667110, 1899730, 2333954, 5834885, 8168839, 11669770, 16337678, 40844195, 81688390]

約数ペア:

[(1, 81688390), (2, 40844195), (5, 16337678), (7, 11669770), (10, 8168839), (14, 5834885), (35, 2333954), (43, 1899730), (49, 1667110), (70, 1166977), (86, 949865), (98, 833555), (215, 379946), (245, 333422), (301, 271390), (430, 189973), (490, 166711), (602, 135695), (1505, 54278), (2107, 38770), (3010, 27139), (3877, 21070), (4214, 19385), (7754, 10535)]