56640420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{751}}^1$

素因数の和:1185

約数の個数: 72

約数和(自身を含む): 172448640

約数和(自身を除く): 115808220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 419, 751, 838, 1257, 1502, 1676, 2095, 2253, 2514, 3004, 3755, 3771, 4190, 4506, 5028, 6285, 6759, 7510, 7542, 8380, 9012, 11265, 12570, 13518, 15020, 15084, 18855, 22530, 25140, 27036, 33795, 37710, 45060, 67590, 75420, 135180, 314669, 629338, 944007, 1258676, 1573345, 1888014, 2832021, 3146690, 3776028, 4720035, 5664042, 6293380, 9440070, 11328084, 14160105, 18880140, 28320210, 56640420]

約数ペア:

[(1, 56640420), (2, 28320210), (3, 18880140), (4, 14160105), (5, 11328084), (6, 9440070), (9, 6293380), (10, 5664042), (12, 4720035), (15, 3776028), (18, 3146690), (20, 2832021), (30, 1888014), (36, 1573345), (45, 1258676), (60, 944007), (90, 629338), (180, 314669), (419, 135180), (751, 75420), (838, 67590), (1257, 45060), (1502, 37710), (1676, 33795), (2095, 27036), (2253, 25140), (2514, 22530), (3004, 18855), (3755, 15084), (3771, 15020), (4190, 13518), (4506, 12570), (5028, 11265), (6285, 9012), (6759, 8380), (7510, 7542)]