20507600

素因数分解:

$2^4\times 5^2\times {\mathrm{167}}^1\times {\mathrm{307}}^1$

素因数の和:492

約数の個数: 60

約数和(自身を含む): 49725984

約数和(自身を除く): 29218384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 167, 200, 307, 334, 400, 614, 668, 835, 1228, 1336, 1535, 1670, 2456, 2672, 3070, 3340, 4175, 4912, 6140, 6680, 7675, 8350, 12280, 13360, 15350, 16700, 24560, 30700, 33400, 51269, 61400, 66800, 102538, 122800, 205076, 256345, 410152, 512690, 820304, 1025380, 1281725, 2050760, 2563450, 4101520, 5126900, 10253800, 20507600]

約数ペア:

[(1, 20507600), (2, 10253800), (4, 5126900), (5, 4101520), (8, 2563450), (10, 2050760), (16, 1281725), (20, 1025380), (25, 820304), (40, 512690), (50, 410152), (80, 256345), (100, 205076), (167, 122800), (200, 102538), (307, 66800), (334, 61400), (400, 51269), (614, 33400), (668, 30700), (835, 24560), (1228, 16700), (1336, 15350), (1535, 13360), (1670, 12280), (2456, 8350), (2672, 7675), (3070, 6680), (3340, 6140), (4175, 4912)]