25157140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 56044800

約数和(自身を除く): 30887660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 239, 277, 380, 478, 554, 956, 1108, 1195, 1385, 2390, 2770, 4541, 4780, 5263, 5540, 9082, 10526, 18164, 21052, 22705, 26315, 45410, 52630, 66203, 90820, 105260, 132406, 264812, 331015, 662030, 1257857, 1324060, 2515714, 5031428, 6289285, 12578570, 25157140]

約数ペア:

[(1, 25157140), (2, 12578570), (4, 6289285), (5, 5031428), (10, 2515714), (19, 1324060), (20, 1257857), (38, 662030), (76, 331015), (95, 264812), (190, 132406), (239, 105260), (277, 90820), (380, 66203), (478, 52630), (554, 45410), (956, 26315), (1108, 22705), (1195, 21052), (1385, 18164), (2390, 10526), (2770, 9082), (4541, 5540), (4780, 5263)]