2020110820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1109951}}^1$

素因数の和:1109980

約数の個数: 48

約数和(自身を含む): 5221214208

約数和(自身を除く): 3201103388

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 1109951, 2219902, 4439804, 5549755, 7769657, 11099510, 14429363, 15539314, 22199020, 28858726, 31078628, 38848285, 57717452, 72146815, 77696570, 101005541, 144293630, 155393140, 202011082, 288587260, 404022164, 505027705, 1010055410, 2020110820]

約数ペア:

[(1, 2020110820), (2, 1010055410), (4, 505027705), (5, 404022164), (7, 288587260), (10, 202011082), (13, 155393140), (14, 144293630), (20, 101005541), (26, 77696570), (28, 72146815), (35, 57717452), (52, 38848285), (65, 31078628), (70, 28858726), (91, 22199020), (130, 15539314), (140, 14429363), (182, 11099510), (260, 7769657), (364, 5549755), (455, 4439804), (910, 2219902), (1820, 1109951)]