277997980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1069223}}^1$

素因数の和:1069245

約数の個数: 24

約数和(自身を含む): 628703712

約数和(自身を除く): 350705732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1069223, 2138446, 4276892, 5346115, 10692230, 13899899, 21384460, 27799798, 55599596, 69499495, 138998990, 277997980]

約数ペア:

[(1, 277997980), (2, 138998990), (4, 69499495), (5, 55599596), (10, 27799798), (13, 21384460), (20, 13899899), (26, 10692230), (52, 5346115), (65, 4276892), (130, 2138446), (260, 1069223)]