20087515525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{25639}}^1$

素因数の和:25715

約数の個数: 72

約数和(自身を含む): 32136970880

約数和(自身を除く): 12049455355

約数列:

[1, 5, 7, 11, 25, 35, 37, 55, 77, 121, 175, 185, 259, 275, 385, 407, 605, 847, 925, 1295, 1925, 2035, 2849, 3025, 4235, 4477, 6475, 10175, 14245, 21175, 22385, 25639, 31339, 71225, 111925, 128195, 156695, 179473, 282029, 640975, 783475, 897365, 948643, 1410145, 1974203, 3102319, 4486825, 4743215, 6640501, 7050725, 9871015, 10435073, 15511595, 21716233, 23716075, 33202505, 49355075, 52175365, 73045511, 77557975, 108581165, 114785803, 166012525, 260876825, 365227555, 542905825, 573929015, 803500621, 1826137775, 2869645075, 4017503105, 20087515525]

約数ペア:

[(1, 20087515525), (5, 4017503105), (7, 2869645075), (11, 1826137775), (25, 803500621), (35, 573929015), (37, 542905825), (55, 365227555), (77, 260876825), (121, 166012525), (175, 114785803), (185, 108581165), (259, 77557975), (275, 73045511), (385, 52175365), (407, 49355075), (605, 33202505), (847, 23716075), (925, 21716233), (1295, 15511595), (1925, 10435073), (2035, 9871015), (2849, 7050725), (3025, 6640501), (4235, 4743215), (4477, 4486825), (6475, 3102319), (10175, 1974203), (14245, 1410145), (21175, 948643), (22385, 897365), (25639, 783475), (31339, 640975), (71225, 282029), (111925, 179473), (128195, 156695)]