281771820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1409}}^1$

素因数の和:1536

約数の個数: 144

約数和(自身を含む): 942308640

約数和(自身を除く): 660536820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 101, 110, 132, 165, 180, 198, 202, 220, 303, 330, 396, 404, 495, 505, 606, 660, 909, 990, 1010, 1111, 1212, 1409, 1515, 1818, 1980, 2020, 2222, 2818, 3030, 3333, 3636, 4227, 4444, 4545, 5555, 5636, 6060, 6666, 7045, 8454, 9090, 9999, 11110, 12681, 13332, 14090, 15499, 16665, 16908, 18180, 19998, 21135, 22220, 25362, 28180, 30998, 33330, 39996, 42270, 46497, 49995, 50724, 61996, 63405, 66660, 77495, 84540, 92994, 99990, 126810, 139491, 142309, 154990, 185988, 199980, 232485, 253620, 278982, 284618, 309980, 426927, 464970, 557964, 569236, 697455, 711545, 853854, 929940, 1280781, 1394910, 1423090, 1565399, 1707708, 2134635, 2561562, 2789820, 2846180, 3130798, 4269270, 4696197, 5123124, 6261596, 6403905, 7826995, 8538540, 9392394, 12807810, 14088591, 15653990, 18784788, 23480985, 25615620, 28177182, 31307980, 46961970, 56354364, 70442955, 93923940, 140885910, 281771820]

約数ペア:

[(1, 281771820), (2, 140885910), (3, 93923940), (4, 70442955), (5, 56354364), (6, 46961970), (9, 31307980), (10, 28177182), (11, 25615620), (12, 23480985), (15, 18784788), (18, 15653990), (20, 14088591), (22, 12807810), (30, 9392394), (33, 8538540), (36, 7826995), (44, 6403905), (45, 6261596), (55, 5123124), (60, 4696197), (66, 4269270), (90, 3130798), (99, 2846180), (101, 2789820), (110, 2561562), (132, 2134635), (165, 1707708), (180, 1565399), (198, 1423090), (202, 1394910), (220, 1280781), (303, 929940), (330, 853854), (396, 711545), (404, 697455), (495, 569236), (505, 557964), (606, 464970), (660, 426927), (909, 309980), (990, 284618), (1010, 278982), (1111, 253620), (1212, 232485), (1409, 199980), (1515, 185988), (1818, 154990), (1980, 142309), (2020, 139491), (2222, 126810), (2818, 99990), (3030, 92994), (3333, 84540), (3636, 77495), (4227, 66660), (4444, 63405), (4545, 61996), (5555, 50724), (5636, 49995), (6060, 46497), (6666, 42270), (7045, 39996), (8454, 33330), (9090, 30998), (9999, 28180), (11110, 25362), (12681, 22220), (13332, 21135), (14090, 19998), (15499, 18180), (16665, 16908)]