26981890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 57425760

約数和(自身を除く): 30443870

約数列:

[1, 2, 5, 10, 13, 17, 26, 29, 34, 58, 65, 85, 130, 145, 170, 221, 290, 377, 421, 442, 493, 754, 842, 986, 1105, 1885, 2105, 2210, 2465, 3770, 4210, 4930, 5473, 6409, 7157, 10946, 12209, 12818, 14314, 24418, 27365, 32045, 35785, 54730, 61045, 64090, 71570, 93041, 122090, 158717, 186082, 207553, 317434, 415106, 465205, 793585, 930410, 1037765, 1587170, 2075530, 2698189, 5396378, 13490945, 26981890]

約数ペア:

[(1, 26981890), (2, 13490945), (5, 5396378), (10, 2698189), (13, 2075530), (17, 1587170), (26, 1037765), (29, 930410), (34, 793585), (58, 465205), (65, 415106), (85, 317434), (130, 207553), (145, 186082), (170, 158717), (221, 122090), (290, 93041), (377, 71570), (421, 64090), (442, 61045), (493, 54730), (754, 35785), (842, 32045), (986, 27365), (1105, 24418), (1885, 14314), (2105, 12818), (2210, 12209), (2465, 10946), (3770, 7157), (4210, 6409), (4930, 5473)]