2774980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{821}}^1$

素因数の和:856

約数の個数: 36

約数和(自身を含む): 6317892

約数和(自身を除く): 3542912

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 821, 845, 1642, 1690, 3284, 3380, 4105, 8210, 10673, 16420, 21346, 42692, 53365, 106730, 138749, 213460, 277498, 554996, 693745, 1387490, 2774980]

約数ペア:

[(1, 2774980), (2, 1387490), (4, 693745), (5, 554996), (10, 277498), (13, 213460), (20, 138749), (26, 106730), (52, 53365), (65, 42692), (130, 21346), (169, 16420), (260, 10673), (338, 8210), (676, 4105), (821, 3380), (845, 3284), (1642, 1690)]