25180820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1373}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 60939648

約数和(自身を除く): 35758828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1373, 1834, 2620, 2746, 3668, 4585, 5492, 6865, 9170, 9611, 13730, 18340, 19222, 27460, 38444, 48055, 96110, 179863, 192220, 359726, 719452, 899315, 1259041, 1798630, 2518082, 3597260, 5036164, 6295205, 12590410, 25180820]

約数ペア:

[(1, 25180820), (2, 12590410), (4, 6295205), (5, 5036164), (7, 3597260), (10, 2518082), (14, 1798630), (20, 1259041), (28, 899315), (35, 719452), (70, 359726), (131, 192220), (140, 179863), (262, 96110), (524, 48055), (655, 38444), (917, 27460), (1310, 19222), (1373, 18340), (1834, 13730), (2620, 9611), (2746, 9170), (3668, 6865), (4585, 5492)]