199903028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 415795968

約数和(自身を除く): 215892940

約数列:

[1, 2, 4, 13, 19, 23, 26, 38, 46, 52, 76, 92, 247, 299, 361, 437, 463, 494, 598, 722, 874, 926, 988, 1196, 1444, 1748, 1852, 4693, 5681, 6019, 8303, 8797, 9386, 10649, 11362, 12038, 16606, 17594, 18772, 21298, 22724, 24076, 33212, 35188, 42596, 107939, 114361, 138437, 167143, 202331, 215878, 228722, 276874, 334286, 404662, 431756, 457444, 553748, 668572, 809324, 2172859, 2630303, 3844289, 4345718, 5260606, 7688578, 8691436, 10521212, 15377156, 49975757, 99951514, 199903028]

約数ペア:

[(1, 199903028), (2, 99951514), (4, 49975757), (13, 15377156), (19, 10521212), (23, 8691436), (26, 7688578), (38, 5260606), (46, 4345718), (52, 3844289), (76, 2630303), (92, 2172859), (247, 809324), (299, 668572), (361, 553748), (437, 457444), (463, 431756), (494, 404662), (598, 334286), (722, 276874), (874, 228722), (926, 215878), (988, 202331), (1196, 167143), (1444, 138437), (1748, 114361), (1852, 107939), (4693, 42596), (5681, 35188), (6019, 33212), (8303, 24076), (8797, 22724), (9386, 21298), (10649, 18772), (11362, 17594), (12038, 16606)]