20783122540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1559}}^1\times {\mathrm{39209}}^1$

素因数の和:40794

約数の個数: 48

約数和(自身を含む): 46242705600

約数和(自身を除く): 25459583060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1559, 3118, 6236, 7795, 15590, 26503, 31180, 39209, 53006, 78418, 106012, 132515, 156836, 196045, 265030, 392090, 530060, 666553, 784180, 1333106, 2666212, 3332765, 6665530, 13331060, 61126831, 122253662, 244507324, 305634155, 611268310, 1039156127, 1222536620, 2078312254, 4156624508, 5195780635, 10391561270, 20783122540]

約数ペア:

[(1, 20783122540), (2, 10391561270), (4, 5195780635), (5, 4156624508), (10, 2078312254), (17, 1222536620), (20, 1039156127), (34, 611268310), (68, 305634155), (85, 244507324), (170, 122253662), (340, 61126831), (1559, 13331060), (3118, 6665530), (6236, 3332765), (7795, 2666212), (15590, 1333106), (26503, 784180), (31180, 666553), (39209, 530060), (53006, 392090), (78418, 265030), (106012, 196045), (132515, 156836)]