640856160

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{63577}}^1$

素因数の和:63605

約数の個数: 144

約数和(自身を含む): 2499378336

約数和(自身を除く): 1858522176

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 63577, 127154, 190731, 254308, 317885, 381462, 445039, 508616, 572193, 635770, 762924, 890078, 953655, 1017232, 1144386, 1271540, 1335117, 1525848, 1780156, 1907310, 2034464, 2225195, 2288772, 2543080, 2670234, 2860965, 3051696, 3560312, 3814620, 4005351, 4450390, 4577544, 5086160, 5340468, 5721930, 6103392, 6675585, 7120624, 7629240, 8010702, 8900780, 9155088, 10172320, 10680936, 11443860, 13351170, 14241248, 15258480, 16021404, 17801560, 18310176, 20026755, 21361872, 22887720, 26702340, 30516960, 32042808, 35603120, 40053510, 42723744, 45775440, 53404680, 64085616, 71206240, 80107020, 91550880, 106809360, 128171232, 160214040, 213618720, 320428080, 640856160]

約数ペア:

[(1, 640856160), (2, 320428080), (3, 213618720), (4, 160214040), (5, 128171232), (6, 106809360), (7, 91550880), (8, 80107020), (9, 71206240), (10, 64085616), (12, 53404680), (14, 45775440), (15, 42723744), (16, 40053510), (18, 35603120), (20, 32042808), (21, 30516960), (24, 26702340), (28, 22887720), (30, 21361872), (32, 20026755), (35, 18310176), (36, 17801560), (40, 16021404), (42, 15258480), (45, 14241248), (48, 13351170), (56, 11443860), (60, 10680936), (63, 10172320), (70, 9155088), (72, 8900780), (80, 8010702), (84, 7629240), (90, 7120624), (96, 6675585), (105, 6103392), (112, 5721930), (120, 5340468), (126, 5086160), (140, 4577544), (144, 4450390), (160, 4005351), (168, 3814620), (180, 3560312), (210, 3051696), (224, 2860965), (240, 2670234), (252, 2543080), (280, 2288772), (288, 2225195), (315, 2034464), (336, 1907310), (360, 1780156), (420, 1525848), (480, 1335117), (504, 1271540), (560, 1144386), (630, 1017232), (672, 953655), (720, 890078), (840, 762924), (1008, 635770), (1120, 572193), (1260, 508616), (1440, 445039), (1680, 381462), (2016, 317885), (2520, 254308), (3360, 190731), (5040, 127154), (10080, 63577)]