507405020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{1447}}^1$

素因数の和:1742

約数の個数: 48

約数和(自身を含む): 1083741120

約数和(自身を除く): 576336100

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 197, 356, 394, 445, 788, 890, 985, 1447, 1780, 1970, 2894, 3940, 5788, 7235, 14470, 17533, 28940, 35066, 70132, 87665, 128783, 175330, 257566, 285059, 350660, 515132, 570118, 643915, 1140236, 1287830, 1425295, 2575660, 2850590, 5701180, 25370251, 50740502, 101481004, 126851255, 253702510, 507405020]

約数ペア:

[(1, 507405020), (2, 253702510), (4, 126851255), (5, 101481004), (10, 50740502), (20, 25370251), (89, 5701180), (178, 2850590), (197, 2575660), (356, 1425295), (394, 1287830), (445, 1140236), (788, 643915), (890, 570118), (985, 515132), (1447, 350660), (1780, 285059), (1970, 257566), (2894, 175330), (3940, 128783), (5788, 87665), (7235, 70132), (14470, 35066), (17533, 28940)]