81717505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 107308800

約数和(自身を除く): 25591295

約数列:

[1, 5, 23, 29, 107, 115, 145, 229, 535, 667, 1145, 2461, 3103, 3335, 5267, 6641, 12305, 15515, 24503, 26335, 33205, 71369, 122515, 152743, 356845, 563569, 710587, 763715, 2817845, 3552935, 16343501, 81717505]

約数ペア:

[(1, 81717505), (5, 16343501), (23, 3552935), (29, 2817845), (107, 763715), (115, 710587), (145, 563569), (229, 356845), (535, 152743), (667, 122515), (1145, 71369), (2461, 33205), (3103, 26335), (3335, 24503), (5267, 15515), (6641, 12305)]