20081200

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{823}}^1$

素因数の和:902

約数の個数: 60

約数和(自身を含む): 49095568

約数和(自身を除く): 29014368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 823, 976, 1220, 1525, 1646, 2440, 3050, 3292, 4115, 4880, 6100, 6584, 8230, 12200, 13168, 16460, 20575, 24400, 32920, 41150, 50203, 65840, 82300, 100406, 164600, 200812, 251015, 329200, 401624, 502030, 803248, 1004060, 1255075, 2008120, 2510150, 4016240, 5020300, 10040600, 20081200]

約数ペア:

[(1, 20081200), (2, 10040600), (4, 5020300), (5, 4016240), (8, 2510150), (10, 2008120), (16, 1255075), (20, 1004060), (25, 803248), (40, 502030), (50, 401624), (61, 329200), (80, 251015), (100, 200812), (122, 164600), (200, 100406), (244, 82300), (305, 65840), (400, 50203), (488, 41150), (610, 32920), (823, 24400), (976, 20575), (1220, 16460), (1525, 13168), (1646, 12200), (2440, 8230), (3050, 6584), (3292, 6100), (4115, 4880)]