213930100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1039}}^1$

素因数の和:1153

約数の個数: 72

約数和(自身を含む): 487468800

約数和(自身を除く): 273538700

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 71, 100, 116, 142, 145, 284, 290, 355, 580, 710, 725, 1039, 1420, 1450, 1775, 2059, 2078, 2900, 3550, 4118, 4156, 5195, 7100, 8236, 10295, 10390, 20590, 20780, 25975, 30131, 41180, 51475, 51950, 60262, 73769, 102950, 103900, 120524, 147538, 150655, 205900, 295076, 301310, 368845, 602620, 737690, 753275, 1475380, 1506550, 1844225, 2139301, 3013100, 3688450, 4278602, 7376900, 8557204, 10696505, 21393010, 42786020, 53482525, 106965050, 213930100]

約数ペア:

[(1, 213930100), (2, 106965050), (4, 53482525), (5, 42786020), (10, 21393010), (20, 10696505), (25, 8557204), (29, 7376900), (50, 4278602), (58, 3688450), (71, 3013100), (100, 2139301), (116, 1844225), (142, 1506550), (145, 1475380), (284, 753275), (290, 737690), (355, 602620), (580, 368845), (710, 301310), (725, 295076), (1039, 205900), (1420, 150655), (1450, 147538), (1775, 120524), (2059, 103900), (2078, 102950), (2900, 73769), (3550, 60262), (4118, 51950), (4156, 51475), (5195, 41180), (7100, 30131), (8236, 25975), (10295, 20780), (10390, 20590)]