320205200

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:111

約数の個数: 270

約数和(自身を含む): 979084098

約数和(自身を除く): 658878898

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 31, 34, 35, 40, 49, 50, 56, 62, 68, 70, 80, 85, 98, 100, 112, 119, 124, 136, 140, 155, 170, 175, 196, 200, 217, 238, 245, 248, 272, 280, 310, 340, 350, 392, 400, 425, 434, 476, 490, 496, 527, 560, 595, 620, 680, 700, 775, 784, 833, 850, 868, 952, 961, 980, 1054, 1085, 1190, 1225, 1240, 1360, 1400, 1519, 1550, 1666, 1700, 1736, 1904, 1922, 1960, 2108, 2170, 2380, 2450, 2480, 2635, 2800, 2975, 3038, 3100, 3332, 3400, 3472, 3689, 3844, 3920, 4165, 4216, 4340, 4760, 4805, 4900, 5270, 5425, 5950, 6076, 6200, 6664, 6727, 6800, 7378, 7595, 7688, 8330, 8432, 8680, 9520, 9610, 9800, 10540, 10850, 11900, 12152, 12400, 13175, 13328, 13454, 14756, 15190, 15376, 16337, 16660, 17360, 18445, 19220, 19600, 20825, 21080, 21700, 23800, 24025, 24304, 25823, 26350, 26908, 29512, 30380, 32674, 33320, 33635, 36890, 37975, 38440, 41650, 42160, 43400, 47089, 47600, 48050, 51646, 52700, 53816, 59024, 60760, 65348, 66640, 67270, 73780, 75950, 76880, 81685, 83300, 86800, 92225, 94178, 96100, 103292, 105400, 107632, 114359, 121520, 129115, 130696, 134540, 147560, 151900, 163370, 166600, 168175, 184450, 188356, 192200, 206584, 210800, 228718, 235445, 258230, 261392, 269080, 295120, 303800, 326740, 333200, 336350, 368900, 376712, 384400, 408425, 413168, 457436, 470890, 516460, 538160, 571795, 607600, 645575, 653480, 672700, 737800, 753424, 800513, 816850, 914872, 941780, 1032920, 1143590, 1177225, 1291150, 1306960, 1345400, 1475600, 1601026, 1633700, 1829744, 1883560, 2065840, 2287180, 2354450, 2582300, 2690800, 2858975, 3202052, 3267400, 3767120, 4002565, 4574360, 4708900, 5164600, 5717950, 6404104, 6534800, 8005130, 9148720, 9417800, 10329200, 11435900, 12808208, 16010260, 18835600, 20012825, 22871800, 32020520, 40025650, 45743600, 64041040, 80051300, 160102600, 320205200]

約数ペア:

[(1, 320205200), (2, 160102600), (4, 80051300), (5, 64041040), (7, 45743600), (8, 40025650), (10, 32020520), (14, 22871800), (16, 20012825), (17, 18835600), (20, 16010260), (25, 12808208), (28, 11435900), (31, 10329200), (34, 9417800), (35, 9148720), (40, 8005130), (49, 6534800), (50, 6404104), (56, 5717950), (62, 5164600), (68, 4708900), (70, 4574360), (80, 4002565), (85, 3767120), (98, 3267400), (100, 3202052), (112, 2858975), (119, 2690800), (124, 2582300), (136, 2354450), (140, 2287180), (155, 2065840), (170, 1883560), (175, 1829744), (196, 1633700), (200, 1601026), (217, 1475600), (238, 1345400), (245, 1306960), (248, 1291150), (272, 1177225), (280, 1143590), (310, 1032920), (340, 941780), (350, 914872), (392, 816850), (400, 800513), (425, 753424), (434, 737800), (476, 672700), (490, 653480), (496, 645575), (527, 607600), (560, 571795), (595, 538160), (620, 516460), (680, 470890), (700, 457436), (775, 413168), (784, 408425), (833, 384400), (850, 376712), (868, 368900), (952, 336350), (961, 333200), (980, 326740), (1054, 303800), (1085, 295120), (1190, 269080), (1225, 261392), (1240, 258230), (1360, 235445), (1400, 228718), (1519, 210800), (1550, 206584), (1666, 192200), (1700, 188356), (1736, 184450), (1904, 168175), (1922, 166600), (1960, 163370), (2108, 151900), (2170, 147560), (2380, 134540), (2450, 130696), (2480, 129115), (2635, 121520), (2800, 114359), (2975, 107632), (3038, 105400), (3100, 103292), (3332, 96100), (3400, 94178), (3472, 92225), (3689, 86800), (3844, 83300), (3920, 81685), (4165, 76880), (4216, 75950), (4340, 73780), (4760, 67270), (4805, 66640), (4900, 65348), (5270, 60760), (5425, 59024), (5950, 53816), (6076, 52700), (6200, 51646), (6664, 48050), (6727, 47600), (6800, 47089), (7378, 43400), (7595, 42160), (7688, 41650), (8330, 38440), (8432, 37975), (8680, 36890), (9520, 33635), (9610, 33320), (9800, 32674), (10540, 30380), (10850, 29512), (11900, 26908), (12152, 26350), (12400, 25823), (13175, 24304), (13328, 24025), (13454, 23800), (14756, 21700), (15190, 21080), (15376, 20825), (16337, 19600), (16660, 19220), (17360, 18445)]