20765220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{1009}}^1$

素因数の和:1042

約数の個数: 96

約数和(自身を含む): 67872000

約数和(自身を除く): 47106780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 980, 1009, 1029, 1372, 1470, 1715, 2018, 2058, 2940, 3027, 3430, 4036, 4116, 5045, 5145, 6054, 6860, 7063, 10090, 10290, 12108, 14126, 15135, 20180, 20580, 21189, 28252, 30270, 35315, 42378, 49441, 60540, 70630, 84756, 98882, 105945, 141260, 148323, 197764, 211890, 247205, 296646, 346087, 423780, 494410, 593292, 692174, 741615, 988820, 1038261, 1384348, 1483230, 1730435, 2076522, 2966460, 3460870, 4153044, 5191305, 6921740, 10382610, 20765220]

約数ペア:

[(1, 20765220), (2, 10382610), (3, 6921740), (4, 5191305), (5, 4153044), (6, 3460870), (7, 2966460), (10, 2076522), (12, 1730435), (14, 1483230), (15, 1384348), (20, 1038261), (21, 988820), (28, 741615), (30, 692174), (35, 593292), (42, 494410), (49, 423780), (60, 346087), (70, 296646), (84, 247205), (98, 211890), (105, 197764), (140, 148323), (147, 141260), (196, 105945), (210, 98882), (245, 84756), (294, 70630), (343, 60540), (420, 49441), (490, 42378), (588, 35315), (686, 30270), (735, 28252), (980, 21189), (1009, 20580), (1029, 20180), (1372, 15135), (1470, 14126), (1715, 12108), (2018, 10290), (2058, 10090), (2940, 7063), (3027, 6860), (3430, 6054), (4036, 5145), (4116, 5045)]