28733320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:539

約数の個数: 128

約数和(自身を含む): 85017600

約数和(自身を除く): 56284280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 380, 385, 418, 440, 491, 532, 616, 665, 760, 770, 836, 982, 1045, 1064, 1330, 1463, 1540, 1672, 1964, 2090, 2455, 2660, 2926, 3080, 3437, 3928, 4180, 4910, 5320, 5401, 5852, 6874, 7315, 8360, 9329, 9820, 10802, 11704, 13748, 14630, 17185, 18658, 19640, 21604, 27005, 27496, 29260, 34370, 37316, 37807, 43208, 46645, 54010, 58520, 65303, 68740, 74632, 75614, 93290, 102619, 108020, 130606, 137480, 151228, 186580, 189035, 205238, 216040, 261212, 302456, 326515, 373160, 378070, 410476, 513095, 522424, 653030, 718333, 756140, 820952, 1026190, 1306060, 1436666, 1512280, 2052380, 2612120, 2873332, 3591665, 4104760, 5746664, 7183330, 14366660, 28733320]

約数ペア:

[(1, 28733320), (2, 14366660), (4, 7183330), (5, 5746664), (7, 4104760), (8, 3591665), (10, 2873332), (11, 2612120), (14, 2052380), (19, 1512280), (20, 1436666), (22, 1306060), (28, 1026190), (35, 820952), (38, 756140), (40, 718333), (44, 653030), (55, 522424), (56, 513095), (70, 410476), (76, 378070), (77, 373160), (88, 326515), (95, 302456), (110, 261212), (133, 216040), (140, 205238), (152, 189035), (154, 186580), (190, 151228), (209, 137480), (220, 130606), (266, 108020), (280, 102619), (308, 93290), (380, 75614), (385, 74632), (418, 68740), (440, 65303), (491, 58520), (532, 54010), (616, 46645), (665, 43208), (760, 37807), (770, 37316), (836, 34370), (982, 29260), (1045, 27496), (1064, 27005), (1330, 21604), (1463, 19640), (1540, 18658), (1672, 17185), (1964, 14630), (2090, 13748), (2455, 11704), (2660, 10802), (2926, 9820), (3080, 9329), (3437, 8360), (3928, 7315), (4180, 6874), (4910, 5852), (5320, 5401)]