71780030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1249}}^1$

素因数の和:2084

約数の個数: 32

約数和(自身を含む): 147960000

約数和(自身を除く): 76179970

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 821, 1249, 1642, 2498, 4105, 5747, 6245, 8210, 8743, 11494, 12490, 17486, 28735, 43715, 57470, 87430, 1025429, 2050858, 5127145, 7178003, 10254290, 14356006, 35890015, 71780030]

約数ペア:

[(1, 71780030), (2, 35890015), (5, 14356006), (7, 10254290), (10, 7178003), (14, 5127145), (35, 2050858), (70, 1025429), (821, 87430), (1249, 57470), (1642, 43715), (2498, 28735), (4105, 17486), (5747, 12490), (6245, 11494), (8210, 8743)]