8380900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 20936160

約数和(自身を除く): 12555260

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 401, 418, 475, 550, 802, 836, 950, 1045, 1100, 1604, 1900, 2005, 2090, 4010, 4180, 4411, 5225, 7619, 8020, 8822, 10025, 10450, 15238, 17644, 20050, 20900, 22055, 30476, 38095, 40100, 44110, 76190, 83809, 88220, 110275, 152380, 167618, 190475, 220550, 335236, 380950, 419045, 441100, 761900, 838090, 1676180, 2095225, 4190450, 8380900]

約数ペア:

[(1, 8380900), (2, 4190450), (4, 2095225), (5, 1676180), (10, 838090), (11, 761900), (19, 441100), (20, 419045), (22, 380950), (25, 335236), (38, 220550), (44, 190475), (50, 167618), (55, 152380), (76, 110275), (95, 88220), (100, 83809), (110, 76190), (190, 44110), (209, 40100), (220, 38095), (275, 30476), (380, 22055), (401, 20900), (418, 20050), (475, 17644), (550, 15238), (802, 10450), (836, 10025), (950, 8822), (1045, 8020), (1100, 7619), (1604, 5225), (1900, 4411), (2005, 4180), (2090, 4010)]