25291420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1493}}^1$

素因数の和:1531

約数の個数: 72

約数和(自身を含む): 66763872

約数和(自身を除く): 41472452

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1493, 1540, 1694, 2420, 2986, 3388, 4235, 5972, 7465, 8470, 10451, 14930, 16423, 16940, 20902, 29860, 32846, 41804, 52255, 65692, 82115, 104510, 114961, 164230, 180653, 209020, 229922, 328460, 361306, 459844, 574805, 722612, 903265, 1149610, 1264571, 1806530, 2299220, 2529142, 3613060, 5058284, 6322855, 12645710, 25291420]

約数ペア:

[(1, 25291420), (2, 12645710), (4, 6322855), (5, 5058284), (7, 3613060), (10, 2529142), (11, 2299220), (14, 1806530), (20, 1264571), (22, 1149610), (28, 903265), (35, 722612), (44, 574805), (55, 459844), (70, 361306), (77, 328460), (110, 229922), (121, 209020), (140, 180653), (154, 164230), (220, 114961), (242, 104510), (308, 82115), (385, 65692), (484, 52255), (605, 41804), (770, 32846), (847, 29860), (1210, 20902), (1493, 16940), (1540, 16423), (1694, 14930), (2420, 10451), (2986, 8470), (3388, 7465), (4235, 5972)]