646486438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3347}}^1$

素因数の和:3421

約数の個数: 64

約数和(自身を含む): 1214922240

約数和(自身を除く): 568435802

約数列:

[1, 2, 13, 17, 19, 23, 26, 34, 38, 46, 221, 247, 299, 323, 391, 437, 442, 494, 598, 646, 782, 874, 3347, 4199, 5083, 5681, 6694, 7429, 8398, 10166, 11362, 14858, 43511, 56899, 63593, 76981, 87022, 96577, 113798, 127186, 153962, 193154, 739687, 826709, 1000753, 1081081, 1308677, 1462639, 1479374, 1653418, 2001506, 2162162, 2617354, 2925278, 14054053, 17012801, 19014307, 24864863, 28108106, 34025602, 38028614, 49729726, 323243219, 646486438]

約数ペア:

[(1, 646486438), (2, 323243219), (13, 49729726), (17, 38028614), (19, 34025602), (23, 28108106), (26, 24864863), (34, 19014307), (38, 17012801), (46, 14054053), (221, 2925278), (247, 2617354), (299, 2162162), (323, 2001506), (391, 1653418), (437, 1479374), (442, 1462639), (494, 1308677), (598, 1081081), (646, 1000753), (782, 826709), (874, 739687), (3347, 193154), (4199, 153962), (5083, 127186), (5681, 113798), (6694, 96577), (7429, 87022), (8398, 76981), (10166, 63593), (11362, 56899), (14858, 43511)]