1260667240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{17519}}^1$

素因数の和:17794

約数の個数: 64

約数和(自身を含む): 3254515200

約数和(自身を除く): 1993847960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1285, 1799, 2056, 2570, 3598, 5140, 7196, 8995, 10280, 14392, 17519, 17990, 35038, 35980, 70076, 71960, 87595, 122633, 140152, 175190, 245266, 350380, 490532, 613165, 700760, 981064, 1226330, 2452660, 4502383, 4905320, 9004766, 18009532, 22511915, 31516681, 36019064, 45023830, 63033362, 90047660, 126066724, 157583405, 180095320, 252133448, 315166810, 630333620, 1260667240]

約数ペア:

[(1, 1260667240), (2, 630333620), (4, 315166810), (5, 252133448), (7, 180095320), (8, 157583405), (10, 126066724), (14, 90047660), (20, 63033362), (28, 45023830), (35, 36019064), (40, 31516681), (56, 22511915), (70, 18009532), (140, 9004766), (257, 4905320), (280, 4502383), (514, 2452660), (1028, 1226330), (1285, 981064), (1799, 700760), (2056, 613165), (2570, 490532), (3598, 350380), (5140, 245266), (7196, 175190), (8995, 140152), (10280, 122633), (14392, 87595), (17519, 71960), (17990, 70076), (35038, 35980)]