20739528052

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1\times {\mathrm{15641}}^1$

素因数の和:15976

約数の個数: 48

約数和(自身を含む): 38892268800

約数和(自身を除く): 18152740748

約数列:

[1, 2, 4, 19, 38, 73, 76, 146, 239, 292, 478, 956, 1387, 2774, 4541, 5548, 9082, 15641, 17447, 18164, 31282, 34894, 62564, 69788, 297179, 331493, 594358, 662986, 1141793, 1188716, 1325972, 2283586, 3738199, 4567172, 7476398, 14952796, 21694067, 43388134, 71025781, 86776268, 142051562, 272888527, 284103124, 545777054, 1091554108, 5184882013, 10369764026, 20739528052]

約数ペア:

[(1, 20739528052), (2, 10369764026), (4, 5184882013), (19, 1091554108), (38, 545777054), (73, 284103124), (76, 272888527), (146, 142051562), (239, 86776268), (292, 71025781), (478, 43388134), (956, 21694067), (1387, 14952796), (2774, 7476398), (4541, 4567172), (5548, 3738199), (9082, 2283586), (15641, 1325972), (17447, 1188716), (18164, 1141793), (31282, 662986), (34894, 594358), (62564, 331493), (69788, 297179)]