399100900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12511}}^1$

素因数の和:12565

約数の個数: 72

約数和(自身を含む): 977437440

約数和(自身を除く): 578336540

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, 12511, 15950, 25022, 31900, 50044, 62555, 125110, 137621, 250220, 275242, 312775, 362819, 550484, 625550, 688105, 725638, 1251100, 1376210, 1451276, 1814095, 2752420, 3440525, 3628190, 3991009, 6881050, 7256380, 7982018, 9070475, 13762100, 15964036, 18140950, 19955045, 36281900, 39910090, 79820180, 99775225, 199550450, 399100900]

約数ペア:

[(1, 399100900), (2, 199550450), (4, 99775225), (5, 79820180), (10, 39910090), (11, 36281900), (20, 19955045), (22, 18140950), (25, 15964036), (29, 13762100), (44, 9070475), (50, 7982018), (55, 7256380), (58, 6881050), (100, 3991009), (110, 3628190), (116, 3440525), (145, 2752420), (220, 1814095), (275, 1451276), (290, 1376210), (319, 1251100), (550, 725638), (580, 688105), (638, 625550), (725, 550484), (1100, 362819), (1276, 312775), (1450, 275242), (1595, 250220), (2900, 137621), (3190, 125110), (6380, 62555), (7975, 50044), (12511, 31900), (15950, 25022)]