19581900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5021}}^1$

素因数の和:5051

約数の個数: 72

約数和(自身を含む): 61027344

約数和(自身を除く): 41445444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5021, 10042, 15063, 20084, 25105, 30126, 50210, 60252, 65273, 75315, 100420, 125525, 130546, 150630, 195819, 251050, 261092, 301260, 326365, 376575, 391638, 502100, 652730, 753150, 783276, 979095, 1305460, 1506300, 1631825, 1958190, 3263650, 3916380, 4895475, 6527300, 9790950, 19581900]

約数ペア:

[(1, 19581900), (2, 9790950), (3, 6527300), (4, 4895475), (5, 3916380), (6, 3263650), (10, 1958190), (12, 1631825), (13, 1506300), (15, 1305460), (20, 979095), (25, 783276), (26, 753150), (30, 652730), (39, 502100), (50, 391638), (52, 376575), (60, 326365), (65, 301260), (75, 261092), (78, 251050), (100, 195819), (130, 150630), (150, 130546), (156, 125525), (195, 100420), (260, 75315), (300, 65273), (325, 60252), (390, 50210), (650, 30126), (780, 25105), (975, 20084), (1300, 15063), (1950, 10042), (3900, 5021)]