19591520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9419}}^1$

素因数の和:9447

約数の個数: 48

約数和(自身を含む): 49850640

約数和(自身を除く): 30259120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9419, 18838, 37676, 47095, 75352, 94190, 122447, 150704, 188380, 244894, 301408, 376760, 489788, 612235, 753520, 979576, 1224470, 1507040, 1959152, 2448940, 3918304, 4897880, 9795760, 19591520]

約数ペア:

[(1, 19591520), (2, 9795760), (4, 4897880), (5, 3918304), (8, 2448940), (10, 1959152), (13, 1507040), (16, 1224470), (20, 979576), (26, 753520), (32, 612235), (40, 489788), (52, 376760), (65, 301408), (80, 244894), (104, 188380), (130, 150704), (160, 122447), (208, 94190), (260, 75352), (416, 47095), (520, 37676), (1040, 18838), (2080, 9419)]