254876240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{187409}}^1$

素因数の和:187439

約数の個数: 40

約数和(自身を含む): 627448680

約数和(自身を除く): 372572440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 187409, 374818, 749636, 937045, 1499272, 1874090, 2998544, 3185953, 3748180, 6371906, 7496360, 12743812, 14992720, 15929765, 25487624, 31859530, 50975248, 63719060, 127438120, 254876240]

約数ペア:

[(1, 254876240), (2, 127438120), (4, 63719060), (5, 50975248), (8, 31859530), (10, 25487624), (16, 15929765), (17, 14992720), (20, 12743812), (34, 7496360), (40, 6371906), (68, 3748180), (80, 3185953), (85, 2998544), (136, 1874090), (170, 1499272), (272, 937045), (340, 749636), (680, 374818), (1360, 187409)]