20123034295

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{523}}^1\times {\mathrm{821}}^1$

素因数の和:1472

約数の個数: 64

約数和(自身を含む): 30102718464

約数和(自身を除く): 9979684169

約数列:

[1, 5, 7, 13, 35, 65, 91, 103, 455, 515, 523, 721, 821, 1339, 2615, 3605, 3661, 4105, 5747, 6695, 6799, 9373, 10673, 18305, 28735, 33995, 46865, 47593, 53365, 53869, 74711, 84563, 237965, 269345, 373555, 377083, 422815, 429383, 591941, 700297, 1099319, 1885415, 2146915, 2959705, 3005681, 3501485, 4902079, 5496595, 5581979, 7695233, 15028405, 24510395, 27909895, 38476165, 39073853, 44226449, 195369265, 221132245, 309585143, 574943837, 1547925715, 2874719185, 4024606859, 20123034295]

約数ペア:

[(1, 20123034295), (5, 4024606859), (7, 2874719185), (13, 1547925715), (35, 574943837), (65, 309585143), (91, 221132245), (103, 195369265), (455, 44226449), (515, 39073853), (523, 38476165), (721, 27909895), (821, 24510395), (1339, 15028405), (2615, 7695233), (3605, 5581979), (3661, 5496595), (4105, 4902079), (5747, 3501485), (6695, 3005681), (6799, 2959705), (9373, 2146915), (10673, 1885415), (18305, 1099319), (28735, 700297), (33995, 591941), (46865, 429383), (47593, 422815), (53365, 377083), (53869, 373555), (74711, 269345), (84563, 237965)]