20912460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8501}}^1$

素因数の和:8554

約数の個数: 48

約数和(自身を含む): 59990112

約数和(自身を除く): 39077652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8501, 17002, 25503, 34004, 42505, 51006, 85010, 102012, 127515, 170020, 255030, 348541, 510060, 697082, 1045623, 1394164, 1742705, 2091246, 3485410, 4182492, 5228115, 6970820, 10456230, 20912460]

約数ペア:

[(1, 20912460), (2, 10456230), (3, 6970820), (4, 5228115), (5, 4182492), (6, 3485410), (10, 2091246), (12, 1742705), (15, 1394164), (20, 1045623), (30, 697082), (41, 510060), (60, 348541), (82, 255030), (123, 170020), (164, 127515), (205, 102012), (246, 85010), (410, 51006), (492, 42505), (615, 34004), (820, 25503), (1230, 17002), (2460, 8501)]