320986400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:144

約数の個数: 216

約数和(自身を含む): 946439424

約数和(自身を除く): 625453024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 43, 50, 56, 62, 70, 80, 86, 100, 112, 124, 140, 155, 160, 172, 175, 200, 215, 217, 224, 248, 280, 301, 310, 344, 350, 400, 430, 434, 496, 560, 602, 620, 688, 700, 775, 800, 860, 868, 992, 1075, 1085, 1120, 1204, 1240, 1333, 1376, 1400, 1505, 1550, 1720, 1736, 1849, 2150, 2170, 2408, 2480, 2666, 2800, 3010, 3100, 3440, 3472, 3698, 4300, 4340, 4816, 4960, 5332, 5425, 5600, 6020, 6200, 6665, 6880, 6944, 7396, 7525, 8600, 8680, 9245, 9331, 9632, 10664, 10850, 12040, 12400, 12943, 13330, 14792, 15050, 17200, 17360, 18490, 18662, 21328, 21700, 24080, 24800, 25886, 26660, 29584, 30100, 33325, 34400, 34720, 36980, 37324, 42656, 43400, 46225, 46655, 48160, 51772, 53320, 57319, 59168, 60200, 64715, 66650, 73960, 74648, 86800, 92450, 93310, 103544, 106640, 114638, 120400, 129430, 133300, 147920, 149296, 173600, 184900, 186620, 207088, 213280, 229276, 233275, 240800, 258860, 266600, 286595, 295840, 298592, 323575, 369800, 373240, 401233, 414176, 458552, 466550, 517720, 533200, 573190, 647150, 739600, 746480, 802466, 917104, 933100, 1035440, 1066400, 1146380, 1294300, 1432975, 1479200, 1492960, 1604932, 1834208, 1866200, 2006165, 2070880, 2292760, 2588600, 2865950, 3209864, 3732400, 4012330, 4585520, 5177200, 5731900, 6419728, 7464800, 8024660, 9171040, 10030825, 10354400, 11463800, 12839456, 16049320, 20061650, 22927600, 32098640, 40123300, 45855200, 64197280, 80246600, 160493200, 320986400]

約数ペア:

[(1, 320986400), (2, 160493200), (4, 80246600), (5, 64197280), (7, 45855200), (8, 40123300), (10, 32098640), (14, 22927600), (16, 20061650), (20, 16049320), (25, 12839456), (28, 11463800), (31, 10354400), (32, 10030825), (35, 9171040), (40, 8024660), (43, 7464800), (50, 6419728), (56, 5731900), (62, 5177200), (70, 4585520), (80, 4012330), (86, 3732400), (100, 3209864), (112, 2865950), (124, 2588600), (140, 2292760), (155, 2070880), (160, 2006165), (172, 1866200), (175, 1834208), (200, 1604932), (215, 1492960), (217, 1479200), (224, 1432975), (248, 1294300), (280, 1146380), (301, 1066400), (310, 1035440), (344, 933100), (350, 917104), (400, 802466), (430, 746480), (434, 739600), (496, 647150), (560, 573190), (602, 533200), (620, 517720), (688, 466550), (700, 458552), (775, 414176), (800, 401233), (860, 373240), (868, 369800), (992, 323575), (1075, 298592), (1085, 295840), (1120, 286595), (1204, 266600), (1240, 258860), (1333, 240800), (1376, 233275), (1400, 229276), (1505, 213280), (1550, 207088), (1720, 186620), (1736, 184900), (1849, 173600), (2150, 149296), (2170, 147920), (2408, 133300), (2480, 129430), (2666, 120400), (2800, 114638), (3010, 106640), (3100, 103544), (3440, 93310), (3472, 92450), (3698, 86800), (4300, 74648), (4340, 73960), (4816, 66650), (4960, 64715), (5332, 60200), (5425, 59168), (5600, 57319), (6020, 53320), (6200, 51772), (6665, 48160), (6880, 46655), (6944, 46225), (7396, 43400), (7525, 42656), (8600, 37324), (8680, 36980), (9245, 34720), (9331, 34400), (9632, 33325), (10664, 30100), (10850, 29584), (12040, 26660), (12400, 25886), (12943, 24800), (13330, 24080), (14792, 21700), (15050, 21328), (17200, 18662), (17360, 18490)]