78821065

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 101928960

約数和(自身を除く): 23107895

約数列:

[1, 5, 31, 41, 79, 155, 157, 205, 395, 785, 1271, 2449, 3239, 4867, 6355, 6437, 12245, 12403, 16195, 24335, 32185, 62015, 100409, 199547, 384493, 502045, 508523, 997735, 1922465, 2542615, 15764213, 78821065]

約数ペア:

[(1, 78821065), (5, 15764213), (31, 2542615), (41, 1922465), (79, 997735), (155, 508523), (157, 502045), (205, 384493), (395, 199547), (785, 100409), (1271, 62015), (2449, 32185), (3239, 24335), (4867, 16195), (6355, 12403), (6437, 12245)]