72555420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{172751}}^1$

素因数の和:172770

約数の個数: 48

約数和(自身を含む): 232178688

約数和(自身を除く): 159623268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 172751, 345502, 518253, 691004, 863755, 1036506, 1209257, 1727510, 2073012, 2418514, 2591265, 3455020, 3627771, 4837028, 5182530, 6046285, 7255542, 10365060, 12092570, 14511084, 18138855, 24185140, 36277710, 72555420]

約数ペア:

[(1, 72555420), (2, 36277710), (3, 24185140), (4, 18138855), (5, 14511084), (6, 12092570), (7, 10365060), (10, 7255542), (12, 6046285), (14, 5182530), (15, 4837028), (20, 3627771), (21, 3455020), (28, 2591265), (30, 2418514), (35, 2073012), (42, 1727510), (60, 1209257), (70, 1036506), (84, 863755), (105, 691004), (140, 518253), (210, 345502), (420, 172751)]