981345455

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{503}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 1251790848

約数和(自身を除く): 270445393

約数列:

[1, 5, 31, 41, 155, 205, 307, 503, 1271, 1535, 2515, 6355, 9517, 12587, 15593, 20623, 47585, 62935, 77965, 103115, 154421, 390197, 639313, 772105, 1950985, 3196565, 4787051, 6331261, 23935255, 31656305, 196269091, 981345455]

約数ペア:

[(1, 981345455), (5, 196269091), (31, 31656305), (41, 23935255), (155, 6331261), (205, 4787051), (307, 3196565), (503, 1950985), (1271, 772105), (1535, 639313), (2515, 390197), (6355, 154421), (9517, 103115), (12587, 77965), (15593, 62935), (20623, 47585)]