20576212820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{56401}}^1$

素因数の和:56493

約数の個数: 96

約数和(自身を含む): 48609499680

約数和(自身を除く): 28033286860

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 37, 58, 68, 74, 85, 116, 145, 148, 170, 185, 290, 340, 370, 493, 580, 629, 740, 986, 1073, 1258, 1972, 2146, 2465, 2516, 3145, 4292, 4930, 5365, 6290, 9860, 10730, 12580, 18241, 21460, 36482, 56401, 72964, 91205, 112802, 182410, 225604, 282005, 364820, 564010, 958817, 1128020, 1635629, 1917634, 2086837, 3271258, 3835268, 4173674, 4794085, 6542516, 8178145, 8347348, 9588170, 10434185, 16356290, 19176340, 20868370, 27805693, 32712580, 35476229, 41736740, 55611386, 60518273, 70952458, 111222772, 121036546, 139028465, 141904916, 177381145, 242073092, 278056930, 302591365, 354762290, 556113860, 605182730, 709524580, 1028810641, 1210365460, 2057621282, 4115242564, 5144053205, 10288106410, 20576212820]

約数ペア:

[(1, 20576212820), (2, 10288106410), (4, 5144053205), (5, 4115242564), (10, 2057621282), (17, 1210365460), (20, 1028810641), (29, 709524580), (34, 605182730), (37, 556113860), (58, 354762290), (68, 302591365), (74, 278056930), (85, 242073092), (116, 177381145), (145, 141904916), (148, 139028465), (170, 121036546), (185, 111222772), (290, 70952458), (340, 60518273), (370, 55611386), (493, 41736740), (580, 35476229), (629, 32712580), (740, 27805693), (986, 20868370), (1073, 19176340), (1258, 16356290), (1972, 10434185), (2146, 9588170), (2465, 8347348), (2516, 8178145), (3145, 6542516), (4292, 4794085), (4930, 4173674), (5365, 3835268), (6290, 3271258), (9860, 2086837), (10730, 1917634), (12580, 1635629), (18241, 1128020), (21460, 958817), (36482, 564010), (56401, 364820), (72964, 282005), (91205, 225604), (112802, 182410)]