209213620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1861}}^1$

素因数の和:1961

約数の個数: 96

約数和(自身を含む): 555561216

約数和(自身を除く): 346347596

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 73, 77, 110, 140, 146, 154, 220, 292, 308, 365, 385, 511, 730, 770, 803, 1022, 1460, 1540, 1606, 1861, 2044, 2555, 3212, 3722, 4015, 5110, 5621, 7444, 8030, 9305, 10220, 11242, 13027, 16060, 18610, 20471, 22484, 26054, 28105, 37220, 40942, 52108, 56210, 65135, 81884, 102355, 112420, 130270, 135853, 143297, 204710, 260540, 271706, 286594, 409420, 543412, 573188, 679265, 716485, 950971, 1358530, 1432970, 1494383, 1901942, 2717060, 2865940, 2988766, 3803884, 4754855, 5977532, 7471915, 9509710, 10460681, 14943830, 19019420, 20921362, 29887660, 41842724, 52303405, 104606810, 209213620]

約数ペア:

[(1, 209213620), (2, 104606810), (4, 52303405), (5, 41842724), (7, 29887660), (10, 20921362), (11, 19019420), (14, 14943830), (20, 10460681), (22, 9509710), (28, 7471915), (35, 5977532), (44, 4754855), (55, 3803884), (70, 2988766), (73, 2865940), (77, 2717060), (110, 1901942), (140, 1494383), (146, 1432970), (154, 1358530), (220, 950971), (292, 716485), (308, 679265), (365, 573188), (385, 543412), (511, 409420), (730, 286594), (770, 271706), (803, 260540), (1022, 204710), (1460, 143297), (1540, 135853), (1606, 130270), (1861, 112420), (2044, 102355), (2555, 81884), (3212, 65135), (3722, 56210), (4015, 52108), (5110, 40942), (5621, 37220), (7444, 28105), (8030, 26054), (9305, 22484), (10220, 20471), (11242, 18610), (13027, 16060)]