209345840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1021}}^1$

素因数の和:1278

約数の個数: 80

約数和(自身を含む): 533778336

約数和(自身を除く): 324432496

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 233, 440, 466, 880, 932, 1021, 1165, 1864, 2042, 2330, 2563, 3728, 4084, 4660, 5105, 5126, 8168, 9320, 10210, 10252, 11231, 12815, 16336, 18640, 20420, 20504, 22462, 25630, 40840, 41008, 44924, 51260, 56155, 81680, 89848, 102520, 112310, 179696, 205040, 224620, 237893, 449240, 475786, 898480, 951572, 1189465, 1903144, 2378930, 2616823, 3806288, 4757860, 5233646, 9515720, 10467292, 13084115, 19031440, 20934584, 26168230, 41869168, 52336460, 104672920, 209345840]

約数ペア:

[(1, 209345840), (2, 104672920), (4, 52336460), (5, 41869168), (8, 26168230), (10, 20934584), (11, 19031440), (16, 13084115), (20, 10467292), (22, 9515720), (40, 5233646), (44, 4757860), (55, 3806288), (80, 2616823), (88, 2378930), (110, 1903144), (176, 1189465), (220, 951572), (233, 898480), (440, 475786), (466, 449240), (880, 237893), (932, 224620), (1021, 205040), (1165, 179696), (1864, 112310), (2042, 102520), (2330, 89848), (2563, 81680), (3728, 56155), (4084, 51260), (4660, 44924), (5105, 41008), (5126, 40840), (8168, 25630), (9320, 22462), (10210, 20504), (10252, 20420), (11231, 18640), (12815, 16336)]