2020177900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1553983}}^1$

素因数の和:1554010

約数の個数: 36

約数和(自身を含む): 4721003392

約数和(自身を除く): 2700825492

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 1553983, 3107966, 6215932, 7769915, 15539830, 20201779, 31079660, 38849575, 40403558, 77699150, 80807116, 101008895, 155398300, 202017790, 404035580, 505044475, 1010088950, 2020177900]

約数ペア:

[(1, 2020177900), (2, 1010088950), (4, 505044475), (5, 404035580), (10, 202017790), (13, 155398300), (20, 101008895), (25, 80807116), (26, 77699150), (50, 40403558), (52, 38849575), (65, 31079660), (100, 20201779), (130, 15539830), (260, 7769915), (325, 6215932), (650, 3107966), (1300, 1553983)]