20879663625

素因数分解:

$3^4\times 5^3\times {\mathrm{523}}^1\times {\mathrm{3943}}^1$

素因数の和:4493

約数の個数: 80

約数和(自身を含む): 39010198656

約数和(自身を除く): 18130535031

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 523, 675, 1125, 1569, 2025, 2615, 3375, 3943, 4707, 7845, 10125, 11829, 13075, 14121, 19715, 23535, 35487, 39225, 42363, 59145, 65375, 70605, 98575, 106461, 117675, 177435, 196125, 211815, 295725, 319383, 353025, 492875, 532305, 588375, 887175, 1059075, 1478625, 1596915, 1765125, 2062189, 2661525, 4435875, 5295375, 6186567, 7984575, 10310945, 13307625, 18559701, 30932835, 39922875, 51554725, 55679103, 92798505, 154664175, 167037309, 257773625, 278395515, 463992525, 773320875, 835186545, 1391977575, 2319962625, 4175932725, 6959887875, 20879663625]

約数ペア:

[(1, 20879663625), (3, 6959887875), (5, 4175932725), (9, 2319962625), (15, 1391977575), (25, 835186545), (27, 773320875), (45, 463992525), (75, 278395515), (81, 257773625), (125, 167037309), (135, 154664175), (225, 92798505), (375, 55679103), (405, 51554725), (523, 39922875), (675, 30932835), (1125, 18559701), (1569, 13307625), (2025, 10310945), (2615, 7984575), (3375, 6186567), (3943, 5295375), (4707, 4435875), (7845, 2661525), (10125, 2062189), (11829, 1765125), (13075, 1596915), (14121, 1478625), (19715, 1059075), (23535, 887175), (35487, 588375), (39225, 532305), (42363, 492875), (59145, 353025), (65375, 319383), (70605, 295725), (98575, 211815), (106461, 196125), (117675, 177435)]