389932478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{34319}}^1$

素因数の和:34376

約数の個数: 32

約数和(自身を含む): 691891200

約数和(自身を除く): 301958722

約数列:

[1, 2, 13, 19, 23, 26, 38, 46, 247, 299, 437, 494, 598, 874, 5681, 11362, 34319, 68638, 446147, 652061, 789337, 892294, 1304122, 1578674, 8476793, 10261381, 14997403, 16953586, 20522762, 29994806, 194966239, 389932478]

約数ペア:

[(1, 389932478), (2, 194966239), (13, 29994806), (19, 20522762), (23, 16953586), (26, 14997403), (38, 10261381), (46, 8476793), (247, 1578674), (299, 1304122), (437, 892294), (494, 789337), (598, 652061), (874, 446147), (5681, 68638), (11362, 34319)]