985890396985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1667}}^1\times {\mathrm{245911}}^1$

素因数の和:247633

約数の個数: 32

約数和(自身を含む): 1309298441472

約数和(自身を除く): 323408044487

約数列:

[1, 5, 13, 37, 65, 185, 481, 1667, 2405, 8335, 21671, 61679, 108355, 245911, 308395, 801827, 1229555, 3196843, 4009135, 9098707, 15984215, 45493535, 118283191, 409933637, 591415955, 2049668185, 5329137281, 15167544569, 26645686405, 75837722845, 197178079397, 985890396985]

約数ペア:

[(1, 985890396985), (5, 197178079397), (13, 75837722845), (37, 26645686405), (65, 15167544569), (185, 5329137281), (481, 2049668185), (1667, 591415955), (2405, 409933637), (8335, 118283191), (21671, 45493535), (61679, 15984215), (108355, 9098707), (245911, 4009135), (308395, 3196843), (801827, 1229555)]