20061800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{829}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 51331350

約数和(自身を除く): 31269550

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 200, 220, 242, 275, 440, 484, 550, 605, 829, 968, 1100, 1210, 1658, 2200, 2420, 3025, 3316, 4145, 4840, 6050, 6632, 8290, 9119, 12100, 16580, 18238, 20725, 24200, 33160, 36476, 41450, 45595, 72952, 82900, 91190, 100309, 165800, 182380, 200618, 227975, 364760, 401236, 455950, 501545, 802472, 911900, 1003090, 1823800, 2006180, 2507725, 4012360, 5015450, 10030900, 20061800]

約数ペア:

[(1, 20061800), (2, 10030900), (4, 5015450), (5, 4012360), (8, 2507725), (10, 2006180), (11, 1823800), (20, 1003090), (22, 911900), (25, 802472), (40, 501545), (44, 455950), (50, 401236), (55, 364760), (88, 227975), (100, 200618), (110, 182380), (121, 165800), (200, 100309), (220, 91190), (242, 82900), (275, 72952), (440, 45595), (484, 41450), (550, 36476), (605, 33160), (829, 24200), (968, 20725), (1100, 18238), (1210, 16580), (1658, 12100), (2200, 9119), (2420, 8290), (3025, 6632), (3316, 6050), (4145, 4840)]