1390291250

素因数分解:

$2^1\times 5^4\times {\mathrm{89}}^1\times {\mathrm{12497}}^1$

素因数の和:12608

約数の個数: 40

約数和(自身を含む): 2635453260

約数和(自身を除く): 1245162010

約数列:

[1, 2, 5, 10, 25, 50, 89, 125, 178, 250, 445, 625, 890, 1250, 2225, 4450, 11125, 12497, 22250, 24994, 55625, 62485, 111250, 124970, 312425, 624850, 1112233, 1562125, 2224466, 3124250, 5561165, 7810625, 11122330, 15621250, 27805825, 55611650, 139029125, 278058250, 695145625, 1390291250]

約数ペア:

[(1, 1390291250), (2, 695145625), (5, 278058250), (10, 139029125), (25, 55611650), (50, 27805825), (89, 15621250), (125, 11122330), (178, 7810625), (250, 5561165), (445, 3124250), (625, 2224466), (890, 1562125), (1250, 1112233), (2225, 624850), (4450, 312425), (11125, 124970), (12497, 111250), (22250, 62485), (24994, 55625)]