209444820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{268519}}^1$

素因数の和:268544

約数の個数: 48

約数和(自身を含む): 631559040

約数和(自身を除く): 422114220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 268519, 537038, 805557, 1074076, 1342595, 1611114, 2685190, 3222228, 3490747, 4027785, 5370380, 6981494, 8055570, 10472241, 13962988, 16111140, 17453735, 20944482, 34907470, 41888964, 52361205, 69814940, 104722410, 209444820]

約数ペア:

[(1, 209444820), (2, 104722410), (3, 69814940), (4, 52361205), (5, 41888964), (6, 34907470), (10, 20944482), (12, 17453735), (13, 16111140), (15, 13962988), (20, 10472241), (26, 8055570), (30, 6981494), (39, 5370380), (52, 4027785), (60, 3490747), (65, 3222228), (78, 2685190), (130, 1611114), (156, 1342595), (195, 1074076), (260, 805557), (390, 537038), (780, 268519)]