159999420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{380951}}^1$

素因数の和:380970

約数の個数: 48

約数和(自身を含む): 511999488

約数和(自身を除く): 352000068

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, 380951, 761902, 1142853, 1523804, 1904755, 2285706, 2666657, 3809510, 4571412, 5333314, 5714265, 7619020, 7999971, 10666628, 11428530, 13333285, 15999942, 22857060, 26666570, 31999884, 39999855, 53333140, 79999710, 159999420]

約数ペア:

[(1, 159999420), (2, 79999710), (3, 53333140), (4, 39999855), (5, 31999884), (6, 26666570), (7, 22857060), (10, 15999942), (12, 13333285), (14, 11428530), (15, 10666628), (20, 7999971), (21, 7619020), (28, 5714265), (30, 5333314), (35, 4571412), (42, 3809510), (60, 2666657), (70, 2285706), (84, 1904755), (105, 1523804), (140, 1142853), (210, 761902), (420, 380951)]