53991420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{128551}}^1$

素因数の和:128570

約数の個数: 48

約数和(自身を含む): 172773888

約数和(自身を除く): 118782468

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, 128551, 257102, 385653, 514204, 642755, 771306, 899857, 1285510, 1542612, 1799714, 1928265, 2571020, 2699571, 3599428, 3856530, 4499285, 5399142, 7713060, 8998570, 10798284, 13497855, 17997140, 26995710, 53991420]

約数ペア:

[(1, 53991420), (2, 26995710), (3, 17997140), (4, 13497855), (5, 10798284), (6, 8998570), (7, 7713060), (10, 5399142), (12, 4499285), (14, 3856530), (15, 3599428), (20, 2699571), (21, 2571020), (28, 1928265), (30, 1799714), (35, 1542612), (42, 1285510), (60, 899857), (70, 771306), (84, 642755), (105, 514204), (140, 385653), (210, 257102), (420, 128551)]