2009491250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{123661}}^1$

素因数の和:123696

約数の個数: 40

約数和(自身を含む): 4056360924

約数和(自身を除く): 2046869674

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3250, 8125, 16250, 123661, 247322, 618305, 1236610, 1607593, 3091525, 3215186, 6183050, 8037965, 15457625, 16075930, 30915250, 40189825, 77288125, 80379650, 154576250, 200949125, 401898250, 1004745625, 2009491250]

約数ペア:

[(1, 2009491250), (2, 1004745625), (5, 401898250), (10, 200949125), (13, 154576250), (25, 80379650), (26, 77288125), (50, 40189825), (65, 30915250), (125, 16075930), (130, 15457625), (250, 8037965), (325, 6183050), (625, 3215186), (650, 3091525), (1250, 1607593), (1625, 1236610), (3250, 618305), (8125, 247322), (16250, 123661)]