28305381760

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{318181}}^1$

素因数の和:318339

約数の個数: 64

約数和(自身を含む): 68154584400

約数和(自身を除く): 39849202640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 278, 320, 556, 640, 695, 1112, 1390, 2224, 2780, 4448, 5560, 8896, 11120, 17792, 22240, 44480, 88960, 318181, 636362, 1272724, 1590905, 2545448, 3181810, 5090896, 6363620, 10181792, 12727240, 20363584, 25454480, 40727168, 44227159, 50908960, 88454318, 101817920, 176908636, 203635840, 221135795, 353817272, 442271590, 707634544, 884543180, 1415269088, 1769086360, 2830538176, 3538172720, 5661076352, 7076345440, 14152690880, 28305381760]

約数ペア:

[(1, 28305381760), (2, 14152690880), (4, 7076345440), (5, 5661076352), (8, 3538172720), (10, 2830538176), (16, 1769086360), (20, 1415269088), (32, 884543180), (40, 707634544), (64, 442271590), (80, 353817272), (128, 221135795), (139, 203635840), (160, 176908636), (278, 101817920), (320, 88454318), (556, 50908960), (640, 44227159), (695, 40727168), (1112, 25454480), (1390, 20363584), (2224, 12727240), (2780, 10181792), (4448, 6363620), (5560, 5090896), (8896, 3181810), (11120, 2545448), (17792, 1590905), (22240, 1272724), (44480, 636362), (88960, 318181)]