18781648730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{253909}}^1$

素因数の和:254498

約数の個数: 32

約数和(自身を含む): 36471632400

約数和(自身を除く): 17689983670

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 569, 1138, 2845, 5690, 7397, 14794, 36985, 73970, 253909, 507818, 1269545, 2539090, 3300817, 6601634, 16504085, 33008170, 144474221, 288948442, 722371105, 1444742210, 1878164873, 3756329746, 9390824365, 18781648730]

約数ペア:

[(1, 18781648730), (2, 9390824365), (5, 3756329746), (10, 1878164873), (13, 1444742210), (26, 722371105), (65, 288948442), (130, 144474221), (569, 33008170), (1138, 16504085), (2845, 6601634), (5690, 3300817), (7397, 2539090), (14794, 1269545), (36985, 507818), (73970, 253909)]