25408460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2357}}^1$

素因数の和:2391

約数の個数: 72

約数和(自身を含む): 67740624

約数和(自身を除く): 42332164

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2357, 2695, 4714, 5390, 9428, 10780, 11785, 16499, 23570, 25927, 32998, 47140, 51854, 65996, 82495, 103708, 115493, 129635, 164990, 181489, 230986, 259270, 329980, 362978, 461972, 518540, 577465, 725956, 907445, 1154930, 1270423, 1814890, 2309860, 2540846, 3629780, 5081692, 6352115, 12704230, 25408460]

約数ペア:

[(1, 25408460), (2, 12704230), (4, 6352115), (5, 5081692), (7, 3629780), (10, 2540846), (11, 2309860), (14, 1814890), (20, 1270423), (22, 1154930), (28, 907445), (35, 725956), (44, 577465), (49, 518540), (55, 461972), (70, 362978), (77, 329980), (98, 259270), (110, 230986), (140, 181489), (154, 164990), (196, 129635), (220, 115493), (245, 103708), (308, 82495), (385, 65996), (490, 51854), (539, 47140), (770, 32998), (980, 25927), (1078, 23570), (1540, 16499), (2156, 11785), (2357, 10780), (2695, 9428), (4714, 5390)]