20179990075

素因数分解:

$5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1\times {\mathrm{1747}}^1$

素因数の和:2356

約数の個数: 48

約数和(自身を含む): 28871366400

約数和(自身を除く): 8691376325

約数列:

[1, 5, 7, 25, 35, 149, 175, 443, 745, 1043, 1747, 2215, 3101, 3725, 5215, 8735, 11075, 12229, 15505, 26075, 43675, 61145, 66007, 77525, 260303, 305725, 330035, 462049, 773921, 1301515, 1650175, 1822121, 2310245, 3869605, 5417447, 6507575, 9110605, 11551225, 19348025, 27087235, 45553025, 115314229, 135436175, 576571145, 807199603, 2882855725, 4035998015, 20179990075]

約数ペア:

[(1, 20179990075), (5, 4035998015), (7, 2882855725), (25, 807199603), (35, 576571145), (149, 135436175), (175, 115314229), (443, 45553025), (745, 27087235), (1043, 19348025), (1747, 11551225), (2215, 9110605), (3101, 6507575), (3725, 5417447), (5215, 3869605), (8735, 2310245), (11075, 1822121), (12229, 1650175), (15505, 1301515), (26075, 773921), (43675, 462049), (61145, 330035), (66007, 305725), (77525, 260303)]