71379420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{169951}}^1$

素因数の和:169970

約数の個数: 48

約数和(自身を含む): 228415488

約数和(自身を除く): 157036068

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, 169951, 339902, 509853, 679804, 849755, 1019706, 1189657, 1699510, 2039412, 2379314, 2549265, 3399020, 3568971, 4758628, 5098530, 5948285, 7137942, 10197060, 11896570, 14275884, 17844855, 23793140, 35689710, 71379420]

約数ペア:

[(1, 71379420), (2, 35689710), (3, 23793140), (4, 17844855), (5, 14275884), (6, 11896570), (7, 10197060), (10, 7137942), (12, 5948285), (14, 5098530), (15, 4758628), (20, 3568971), (21, 3399020), (28, 2549265), (30, 2379314), (35, 2039412), (42, 1699510), (60, 1189657), (70, 1019706), (84, 849755), (105, 679804), (140, 509853), (210, 339902), (420, 169951)]