388779718

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{397}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 621835200

約数和(自身を除く): 233055482

約数列:

[1, 2, 23, 46, 61, 122, 349, 397, 698, 794, 1403, 2806, 8027, 9131, 16054, 18262, 21289, 24217, 42578, 48434, 138553, 277106, 489647, 556991, 979294, 1113982, 3186719, 6373438, 8451733, 16903466, 194389859, 388779718]

約数ペア:

[(1, 388779718), (2, 194389859), (23, 16903466), (46, 8451733), (61, 6373438), (122, 3186719), (349, 1113982), (397, 979294), (698, 556991), (794, 489647), (1403, 277106), (2806, 138553), (8027, 48434), (9131, 42578), (16054, 24217), (18262, 21289)]