2021215900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{63361}}^1$

素因数の和:63415

約数の個数: 72

約数和(自身を含む): 4949839440

約数和(自身を除く): 2928623540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 319, 550, 580, 638, 725, 1100, 1276, 1450, 1595, 2900, 3190, 6380, 7975, 15950, 31900, 63361, 126722, 253444, 316805, 633610, 696971, 1267220, 1393942, 1584025, 1837469, 2787884, 3168050, 3484855, 3674938, 6336100, 6969710, 7349876, 9187345, 13939420, 17424275, 18374690, 20212159, 34848550, 36749380, 40424318, 45936725, 69697100, 80848636, 91873450, 101060795, 183746900, 202121590, 404243180, 505303975, 1010607950, 2021215900]

約数ペア:

[(1, 2021215900), (2, 1010607950), (4, 505303975), (5, 404243180), (10, 202121590), (11, 183746900), (20, 101060795), (22, 91873450), (25, 80848636), (29, 69697100), (44, 45936725), (50, 40424318), (55, 36749380), (58, 34848550), (100, 20212159), (110, 18374690), (116, 17424275), (145, 13939420), (220, 9187345), (275, 7349876), (290, 6969710), (319, 6336100), (550, 3674938), (580, 3484855), (638, 3168050), (725, 2787884), (1100, 1837469), (1276, 1584025), (1450, 1393942), (1595, 1267220), (2900, 696971), (3190, 633610), (6380, 316805), (7975, 253444), (15950, 126722), (31900, 63361)]