2021354860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 5056128000

約数和(自身を除く): 3034773140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 127, 140, 149, 196, 218, 245, 254, 298, 436, 490, 508, 545, 596, 635, 745, 763, 889, 980, 1043, 1090, 1270, 1490, 1526, 1778, 2086, 2180, 2540, 2980, 3052, 3556, 3815, 4172, 4445, 5215, 5341, 6223, 7301, 7630, 8890, 10430, 10682, 12446, 13843, 14602, 15260, 16241, 17780, 18923, 20860, 21364, 24892, 26705, 27686, 29204, 31115, 32482, 36505, 37846, 53410, 55372, 62230, 64964, 69215, 73010, 75692, 81205, 94615, 96901, 106820, 113687, 124460, 132461, 138430, 146020, 162410, 189230, 193802, 227374, 264922, 276860, 324820, 378460, 387604, 454748, 484505, 529844, 568435, 662305, 678307, 795809, 927227, 969010, 1136870, 1324610, 1356614, 1591618, 1854454, 1938020, 2062607, 2273740, 2649220, 2713228, 3183236, 3391535, 3708908, 3979045, 4125214, 4636135, 6783070, 7958090, 8250428, 9272270, 10313035, 13566140, 14438249, 15916180, 18544540, 20626070, 28876498, 41252140, 57752996, 72191245, 101067743, 144382490, 202135486, 288764980, 404270972, 505338715, 1010677430, 2021354860]

約数ペア:

[(1, 2021354860), (2, 1010677430), (4, 505338715), (5, 404270972), (7, 288764980), (10, 202135486), (14, 144382490), (20, 101067743), (28, 72191245), (35, 57752996), (49, 41252140), (70, 28876498), (98, 20626070), (109, 18544540), (127, 15916180), (140, 14438249), (149, 13566140), (196, 10313035), (218, 9272270), (245, 8250428), (254, 7958090), (298, 6783070), (436, 4636135), (490, 4125214), (508, 3979045), (545, 3708908), (596, 3391535), (635, 3183236), (745, 2713228), (763, 2649220), (889, 2273740), (980, 2062607), (1043, 1938020), (1090, 1854454), (1270, 1591618), (1490, 1356614), (1526, 1324610), (1778, 1136870), (2086, 969010), (2180, 927227), (2540, 795809), (2980, 678307), (3052, 662305), (3556, 568435), (3815, 529844), (4172, 484505), (4445, 454748), (5215, 387604), (5341, 378460), (6223, 324820), (7301, 276860), (7630, 264922), (8890, 227374), (10430, 193802), (10682, 189230), (12446, 162410), (13843, 146020), (14602, 138430), (15260, 132461), (16241, 124460), (17780, 113687), (18923, 106820), (20860, 96901), (21364, 94615), (24892, 81205), (26705, 75692), (27686, 73010), (29204, 69215), (31115, 64964), (32482, 62230), (36505, 55372), (37846, 53410)]