81503880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1621}}^1$

素因数の和:2054

約数の個数: 64

約数和(自身を含む): 245246400

約数和(自身を除く): 163742520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 419, 838, 1257, 1621, 1676, 2095, 2514, 3242, 3352, 4190, 4863, 5028, 6285, 6484, 8105, 8380, 9726, 10056, 12570, 12968, 16210, 16760, 19452, 24315, 25140, 32420, 38904, 48630, 50280, 64840, 97260, 194520, 679199, 1358398, 2037597, 2716796, 3395995, 4075194, 5433592, 6791990, 8150388, 10187985, 13583980, 16300776, 20375970, 27167960, 40751940, 81503880]

約数ペア:

[(1, 81503880), (2, 40751940), (3, 27167960), (4, 20375970), (5, 16300776), (6, 13583980), (8, 10187985), (10, 8150388), (12, 6791990), (15, 5433592), (20, 4075194), (24, 3395995), (30, 2716796), (40, 2037597), (60, 1358398), (120, 679199), (419, 194520), (838, 97260), (1257, 64840), (1621, 50280), (1676, 48630), (2095, 38904), (2514, 32420), (3242, 25140), (3352, 24315), (4190, 19452), (4863, 16760), (5028, 16210), (6285, 12968), (6484, 12570), (8105, 10056), (8380, 9726)]