20198081518

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1\times {\mathrm{6221}}^1$

素因数の和:8272

約数の個数: 32

約数和(自身を含む): 32655047040

約数和(自身を除く): 12456965522

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 1987, 3974, 6221, 12442, 37753, 75506, 85441, 118199, 170882, 236398, 267503, 535006, 1623379, 3246758, 5082557, 10165114, 12361127, 24722254, 234861413, 469722826, 531528461, 1063056922, 10099040759, 20198081518]

約数ペア:

[(1, 20198081518), (2, 10099040759), (19, 1063056922), (38, 531528461), (43, 469722826), (86, 234861413), (817, 24722254), (1634, 12361127), (1987, 10165114), (3974, 5082557), (6221, 3246758), (12442, 1623379), (37753, 535006), (75506, 267503), (85441, 236398), (118199, 170882)]