304931440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{827}}^1$

素因数の和:1270

約数の個数: 80

約数和(自身を含む): 776200320

約数和(自身を除く): 471268880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 419, 440, 827, 838, 880, 1654, 1676, 2095, 3308, 3352, 4135, 4190, 4609, 6616, 6704, 8270, 8380, 9097, 9218, 13232, 16540, 16760, 18194, 18436, 23045, 33080, 33520, 36388, 36872, 45485, 46090, 66160, 72776, 73744, 90970, 92180, 145552, 181940, 184360, 346513, 363880, 368720, 693026, 727760, 1386052, 1732565, 2772104, 3465130, 3811643, 5544208, 6930260, 7623286, 13860520, 15246572, 19058215, 27721040, 30493144, 38116430, 60986288, 76232860, 152465720, 304931440]

約数ペア:

[(1, 304931440), (2, 152465720), (4, 76232860), (5, 60986288), (8, 38116430), (10, 30493144), (11, 27721040), (16, 19058215), (20, 15246572), (22, 13860520), (40, 7623286), (44, 6930260), (55, 5544208), (80, 3811643), (88, 3465130), (110, 2772104), (176, 1732565), (220, 1386052), (419, 727760), (440, 693026), (827, 368720), (838, 363880), (880, 346513), (1654, 184360), (1676, 181940), (2095, 145552), (3308, 92180), (3352, 90970), (4135, 73744), (4190, 72776), (4609, 66160), (6616, 46090), (6704, 45485), (8270, 36872), (8380, 36388), (9097, 33520), (9218, 33080), (13232, 23045), (16540, 18436), (16760, 18194)]