78465680

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7723}}^1$

素因数の和:7863

約数の個数: 40

約数和(自身を含む): 183892992

約数和(自身を除く): 105427312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 7723, 10160, 15446, 30892, 38615, 61784, 77230, 123568, 154460, 308920, 617840, 980821, 1961642, 3923284, 4904105, 7846568, 9808210, 15693136, 19616420, 39232840, 78465680]

約数ペア:

[(1, 78465680), (2, 39232840), (4, 19616420), (5, 15693136), (8, 9808210), (10, 7846568), (16, 4904105), (20, 3923284), (40, 1961642), (80, 980821), (127, 617840), (254, 308920), (508, 154460), (635, 123568), (1016, 77230), (1270, 61784), (2032, 38615), (2540, 30892), (5080, 15446), (7723, 10160)]