21772960

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 96

約数和(自身を含む): 57153600

約数和(自身を除く): 35380640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 89, 110, 139, 160, 176, 178, 220, 278, 352, 356, 440, 445, 556, 695, 712, 880, 890, 979, 1112, 1390, 1424, 1529, 1760, 1780, 1958, 2224, 2780, 2848, 3058, 3560, 3916, 4448, 4895, 5560, 6116, 7120, 7645, 7832, 9790, 11120, 12232, 12371, 14240, 15290, 15664, 19580, 22240, 24464, 24742, 30580, 31328, 39160, 48928, 49484, 61160, 61855, 78320, 98968, 122320, 123710, 136081, 156640, 197936, 244640, 247420, 272162, 395872, 494840, 544324, 680405, 989680, 1088648, 1360810, 1979360, 2177296, 2721620, 4354592, 5443240, 10886480, 21772960]

約数ペア:

[(1, 21772960), (2, 10886480), (4, 5443240), (5, 4354592), (8, 2721620), (10, 2177296), (11, 1979360), (16, 1360810), (20, 1088648), (22, 989680), (32, 680405), (40, 544324), (44, 494840), (55, 395872), (80, 272162), (88, 247420), (89, 244640), (110, 197936), (139, 156640), (160, 136081), (176, 123710), (178, 122320), (220, 98968), (278, 78320), (352, 61855), (356, 61160), (440, 49484), (445, 48928), (556, 39160), (695, 31328), (712, 30580), (880, 24742), (890, 24464), (979, 22240), (1112, 19580), (1390, 15664), (1424, 15290), (1529, 14240), (1760, 12371), (1780, 12232), (1958, 11120), (2224, 9790), (2780, 7832), (2848, 7645), (3058, 7120), (3560, 6116), (3916, 5560), (4448, 4895)]