20346700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 49215600

約数和(自身を除く): 28868900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 53, 55, 100, 106, 110, 212, 220, 265, 275, 349, 530, 550, 583, 698, 1060, 1100, 1166, 1325, 1396, 1745, 2332, 2650, 2915, 3490, 3839, 5300, 5830, 6980, 7678, 8725, 11660, 14575, 15356, 17450, 18497, 19195, 29150, 34900, 36994, 38390, 58300, 73988, 76780, 92485, 95975, 184970, 191950, 203467, 369940, 383900, 406934, 462425, 813868, 924850, 1017335, 1849700, 2034670, 4069340, 5086675, 10173350, 20346700]

約数ペア:

[(1, 20346700), (2, 10173350), (4, 5086675), (5, 4069340), (10, 2034670), (11, 1849700), (20, 1017335), (22, 924850), (25, 813868), (44, 462425), (50, 406934), (53, 383900), (55, 369940), (100, 203467), (106, 191950), (110, 184970), (212, 95975), (220, 92485), (265, 76780), (275, 73988), (349, 58300), (530, 38390), (550, 36994), (583, 34900), (698, 29150), (1060, 19195), (1100, 18497), (1166, 17450), (1325, 15356), (1396, 14575), (1745, 11660), (2332, 8725), (2650, 7678), (2915, 6980), (3490, 5830), (3839, 5300)]