213504500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{3529}}^1$

素因数の和:3570

約数の個数: 72

約数和(自身を含む): 512683080

約数和(自身を除く): 299178580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 484, 500, 550, 605, 1100, 1210, 1375, 2420, 2750, 3025, 3529, 5500, 6050, 7058, 12100, 14116, 15125, 17645, 30250, 35290, 38819, 60500, 70580, 77638, 88225, 155276, 176450, 194095, 352900, 388190, 427009, 441125, 776380, 854018, 882250, 970475, 1708036, 1764500, 1940950, 2135045, 3881900, 4270090, 4852375, 8540180, 9704750, 10675225, 19409500, 21350450, 42700900, 53376125, 106752250, 213504500]

約数ペア:

[(1, 213504500), (2, 106752250), (4, 53376125), (5, 42700900), (10, 21350450), (11, 19409500), (20, 10675225), (22, 9704750), (25, 8540180), (44, 4852375), (50, 4270090), (55, 3881900), (100, 2135045), (110, 1940950), (121, 1764500), (125, 1708036), (220, 970475), (242, 882250), (250, 854018), (275, 776380), (484, 441125), (500, 427009), (550, 388190), (605, 352900), (1100, 194095), (1210, 176450), (1375, 155276), (2420, 88225), (2750, 77638), (3025, 70580), (3529, 60500), (5500, 38819), (6050, 35290), (7058, 30250), (12100, 17645), (14116, 15125)]