217542920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{367}}^1$

素因数の和:487

約数の個数: 128

約数和(自身を含む): 588211200

約数和(自身を除く): 370668280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 73, 116, 140, 145, 146, 203, 232, 280, 290, 292, 365, 367, 406, 511, 580, 584, 730, 734, 812, 1015, 1022, 1160, 1460, 1468, 1624, 1835, 2030, 2044, 2117, 2555, 2569, 2920, 2936, 3670, 4060, 4088, 4234, 5110, 5138, 7340, 8120, 8468, 10220, 10276, 10585, 10643, 12845, 14680, 14819, 16936, 20440, 20552, 21170, 21286, 25690, 26791, 29638, 42340, 42572, 51380, 53215, 53582, 59276, 74095, 74501, 84680, 85144, 102760, 106430, 107164, 118552, 133955, 148190, 149002, 187537, 212860, 214328, 267910, 296380, 298004, 372505, 375074, 425720, 535820, 592760, 596008, 745010, 750148, 776939, 937685, 1071640, 1490020, 1500296, 1553878, 1875370, 2980040, 3107756, 3750740, 3884695, 5438573, 6215512, 7501480, 7769390, 10877146, 15538780, 21754292, 27192865, 31077560, 43508584, 54385730, 108771460, 217542920]

約数ペア:

[(1, 217542920), (2, 108771460), (4, 54385730), (5, 43508584), (7, 31077560), (8, 27192865), (10, 21754292), (14, 15538780), (20, 10877146), (28, 7769390), (29, 7501480), (35, 6215512), (40, 5438573), (56, 3884695), (58, 3750740), (70, 3107756), (73, 2980040), (116, 1875370), (140, 1553878), (145, 1500296), (146, 1490020), (203, 1071640), (232, 937685), (280, 776939), (290, 750148), (292, 745010), (365, 596008), (367, 592760), (406, 535820), (511, 425720), (580, 375074), (584, 372505), (730, 298004), (734, 296380), (812, 267910), (1015, 214328), (1022, 212860), (1160, 187537), (1460, 149002), (1468, 148190), (1624, 133955), (1835, 118552), (2030, 107164), (2044, 106430), (2117, 102760), (2555, 85144), (2569, 84680), (2920, 74501), (2936, 74095), (3670, 59276), (4060, 53582), (4088, 53215), (4234, 51380), (5110, 42572), (5138, 42340), (7340, 29638), (8120, 26791), (8468, 25690), (10220, 21286), (10276, 21170), (10585, 20552), (10643, 20440), (12845, 16936), (14680, 14819)]