20447736680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{99901}}^1$

素因数の和:99979

約数の個数: 128

約数和(自身を含む): 56968116480

約数和(自身を除く): 36520379800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 43, 56, 68, 70, 85, 86, 119, 136, 140, 170, 172, 215, 238, 280, 301, 340, 344, 430, 476, 595, 602, 680, 731, 860, 952, 1190, 1204, 1462, 1505, 1720, 2380, 2408, 2924, 3010, 3655, 4760, 5117, 5848, 6020, 7310, 10234, 12040, 14620, 20468, 25585, 29240, 40936, 51170, 99901, 102340, 199802, 204680, 399604, 499505, 699307, 799208, 999010, 1398614, 1698317, 1998020, 2797228, 3396634, 3496535, 3996040, 4295743, 5594456, 6793268, 6993070, 8491585, 8591486, 11888219, 13586536, 13986140, 16983170, 17182972, 21478715, 23776438, 27972280, 30070201, 33966340, 34365944, 42957430, 47552876, 59441095, 60140402, 67932680, 73027631, 85914860, 95105752, 118882190, 120280804, 146055262, 150351005, 171829720, 237764380, 240561608, 292110524, 300702010, 365138155, 475528760, 511193417, 584221048, 601404020, 730276310, 1022386834, 1202808040, 1460552620, 2044773668, 2555967085, 2921105240, 4089547336, 5111934170, 10223868340, 20447736680]

約数ペア:

[(1, 20447736680), (2, 10223868340), (4, 5111934170), (5, 4089547336), (7, 2921105240), (8, 2555967085), (10, 2044773668), (14, 1460552620), (17, 1202808040), (20, 1022386834), (28, 730276310), (34, 601404020), (35, 584221048), (40, 511193417), (43, 475528760), (56, 365138155), (68, 300702010), (70, 292110524), (85, 240561608), (86, 237764380), (119, 171829720), (136, 150351005), (140, 146055262), (170, 120280804), (172, 118882190), (215, 95105752), (238, 85914860), (280, 73027631), (301, 67932680), (340, 60140402), (344, 59441095), (430, 47552876), (476, 42957430), (595, 34365944), (602, 33966340), (680, 30070201), (731, 27972280), (860, 23776438), (952, 21478715), (1190, 17182972), (1204, 16983170), (1462, 13986140), (1505, 13586536), (1720, 11888219), (2380, 8591486), (2408, 8491585), (2924, 6993070), (3010, 6793268), (3655, 5594456), (4760, 4295743), (5117, 3996040), (5848, 3496535), (6020, 3396634), (7310, 2797228), (10234, 1998020), (12040, 1698317), (14620, 1398614), (20468, 999010), (25585, 799208), (29240, 699307), (40936, 499505), (51170, 399604), (99901, 204680), (102340, 199802)]