20630830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{137}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 41939856

約数和(自身を除く): 21309026

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 137, 185, 274, 370, 407, 685, 814, 1369, 1370, 1507, 2035, 2738, 3014, 4070, 5069, 6845, 7535, 10138, 13690, 15059, 15070, 25345, 30118, 50690, 55759, 75295, 111518, 150590, 187553, 278795, 375106, 557590, 937765, 1875530, 2063083, 4126166, 10315415, 20630830]

約数ペア:

[(1, 20630830), (2, 10315415), (5, 4126166), (10, 2063083), (11, 1875530), (22, 937765), (37, 557590), (55, 375106), (74, 278795), (110, 187553), (137, 150590), (185, 111518), (274, 75295), (370, 55759), (407, 50690), (685, 30118), (814, 25345), (1369, 15070), (1370, 15059), (1507, 13690), (2035, 10138), (2738, 7535), (3014, 6845), (4070, 5069)]