2018900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1553}}^1$

素因数の和:1580

約数の個数: 36

約数和(自身を含む): 4721052

約数和(自身を除く): 2702152

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 1553, 3106, 6212, 7765, 15530, 20189, 31060, 38825, 40378, 77650, 80756, 100945, 155300, 201890, 403780, 504725, 1009450, 2018900]

約数ペア:

[(1, 2018900), (2, 1009450), (4, 504725), (5, 403780), (10, 201890), (13, 155300), (20, 100945), (25, 80756), (26, 77650), (50, 40378), (52, 38825), (65, 31060), (100, 20189), (130, 15530), (260, 7765), (325, 6212), (650, 3106), (1300, 1553)]