215501615

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2393}}^1$

素因数の和:2519

約数の個数: 32

約数和(自身を含む): 308883456

約数和(自身を除く): 93381841

約数列:

[1, 5, 7, 31, 35, 83, 155, 217, 415, 581, 1085, 2393, 2573, 2905, 11965, 12865, 16751, 18011, 74183, 83755, 90055, 198619, 370915, 519281, 993095, 1390333, 2596405, 6157189, 6951665, 30785945, 43100323, 215501615]

約数ペア:

[(1, 215501615), (5, 43100323), (7, 30785945), (31, 6951665), (35, 6157189), (83, 2596405), (155, 1390333), (217, 993095), (415, 519281), (581, 370915), (1085, 198619), (2393, 90055), (2573, 83755), (2905, 74183), (11965, 18011), (12865, 16751)]