20128120

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{829}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 45417600

約数和(自身を除く): 25289480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 829, 1214, 1658, 2428, 3035, 3316, 4145, 4856, 6070, 6632, 8290, 12140, 16580, 24280, 33160, 503203, 1006406, 2012812, 2516015, 4025624, 5032030, 10064060, 20128120]

約数ペア:

[(1, 20128120), (2, 10064060), (4, 5032030), (5, 4025624), (8, 2516015), (10, 2012812), (20, 1006406), (40, 503203), (607, 33160), (829, 24280), (1214, 16580), (1658, 12140), (2428, 8290), (3035, 6632), (3316, 6070), (4145, 4856)]