215512700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{165779}}^1$

素因数の和:165806

約数の個数: 36

約数和(自身を含む): 503639640

約数和(自身を除く): 288126940

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 165779, 331558, 663116, 828895, 1657790, 2155127, 3315580, 4144475, 4310254, 8288950, 8620508, 10775635, 16577900, 21551270, 43102540, 53878175, 107756350, 215512700]

約数ペア:

[(1, 215512700), (2, 107756350), (4, 53878175), (5, 43102540), (10, 21551270), (13, 16577900), (20, 10775635), (25, 8620508), (26, 8288950), (50, 4310254), (52, 4144475), (65, 3315580), (100, 2155127), (130, 1657790), (260, 828895), (325, 663116), (650, 331558), (1300, 165779)]