28220814

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:190

約数の個数: 72

約数和(自身を含む): 66687192

約数和(自身を除く): 38466378

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 43, 57, 86, 101, 114, 129, 171, 202, 258, 303, 342, 361, 387, 606, 722, 774, 817, 909, 1083, 1634, 1818, 1919, 2166, 2451, 3249, 3838, 4343, 4902, 5757, 6498, 7353, 8686, 11514, 13029, 14706, 15523, 17271, 26058, 31046, 34542, 36461, 39087, 46569, 72922, 78174, 82517, 93138, 109383, 139707, 165034, 218766, 247551, 279414, 328149, 495102, 656298, 742653, 1485306, 1567823, 3135646, 4703469, 9406938, 14110407, 28220814]

約数ペア:

[(1, 28220814), (2, 14110407), (3, 9406938), (6, 4703469), (9, 3135646), (18, 1567823), (19, 1485306), (38, 742653), (43, 656298), (57, 495102), (86, 328149), (101, 279414), (114, 247551), (129, 218766), (171, 165034), (202, 139707), (258, 109383), (303, 93138), (342, 82517), (361, 78174), (387, 72922), (606, 46569), (722, 39087), (774, 36461), (817, 34542), (909, 31046), (1083, 26058), (1634, 17271), (1818, 15523), (1919, 14706), (2166, 13029), (2451, 11514), (3249, 8686), (3838, 7353), (4343, 6498), (4902, 5757)]