320569760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1319}}^1$

素因数の和:1379

約数の個数: 144

約数和(自身を含む): 910103040

約数和(自身を除く): 589533280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 992, 1085, 1120, 1240, 1319, 1519, 1568, 1736, 1960, 2170, 2480, 2638, 3038, 3472, 3920, 4340, 4960, 5276, 6076, 6595, 6944, 7595, 7840, 8680, 9233, 10552, 12152, 13190, 15190, 17360, 18466, 21104, 24304, 26380, 30380, 34720, 36932, 40889, 42208, 46165, 48608, 52760, 60760, 64631, 73864, 81778, 92330, 105520, 121520, 129262, 147728, 163556, 184660, 204445, 211040, 243040, 258524, 286223, 295456, 323155, 327112, 369320, 408890, 517048, 572446, 646310, 654224, 738640, 817780, 1034096, 1144892, 1292620, 1308448, 1431115, 1477280, 1635560, 2003561, 2068192, 2289784, 2585240, 2862230, 3271120, 4007122, 4579568, 5170480, 5724460, 6542240, 8014244, 9159136, 10017805, 10340960, 11448920, 16028488, 20035610, 22897840, 32056976, 40071220, 45795680, 64113952, 80142440, 160284880, 320569760]

約数ペア:

[(1, 320569760), (2, 160284880), (4, 80142440), (5, 64113952), (7, 45795680), (8, 40071220), (10, 32056976), (14, 22897840), (16, 20035610), (20, 16028488), (28, 11448920), (31, 10340960), (32, 10017805), (35, 9159136), (40, 8014244), (49, 6542240), (56, 5724460), (62, 5170480), (70, 4579568), (80, 4007122), (98, 3271120), (112, 2862230), (124, 2585240), (140, 2289784), (155, 2068192), (160, 2003561), (196, 1635560), (217, 1477280), (224, 1431115), (245, 1308448), (248, 1292620), (280, 1144892), (310, 1034096), (392, 817780), (434, 738640), (490, 654224), (496, 646310), (560, 572446), (620, 517048), (784, 408890), (868, 369320), (980, 327112), (992, 323155), (1085, 295456), (1120, 286223), (1240, 258524), (1319, 243040), (1519, 211040), (1568, 204445), (1736, 184660), (1960, 163556), (2170, 147728), (2480, 129262), (2638, 121520), (3038, 105520), (3472, 92330), (3920, 81778), (4340, 73864), (4960, 64631), (5276, 60760), (6076, 52760), (6595, 48608), (6944, 46165), (7595, 42208), (7840, 40889), (8680, 36932), (9233, 34720), (10552, 30380), (12152, 26380), (13190, 24304), (15190, 21104), (17360, 18466)]