19680408

素因数分解:

$2^3\times 3^4\times {\mathrm{11}}^2\times {\mathrm{251}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 60831540

約数和(自身を除く): 41151132

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 121, 132, 162, 198, 216, 242, 251, 264, 297, 324, 363, 396, 484, 502, 594, 648, 726, 753, 792, 891, 968, 1004, 1089, 1188, 1452, 1506, 1782, 2008, 2178, 2259, 2376, 2761, 2904, 3012, 3267, 3564, 4356, 4518, 5522, 6024, 6534, 6777, 7128, 8283, 8712, 9036, 9801, 11044, 13068, 13554, 16566, 18072, 19602, 20331, 22088, 24849, 26136, 27108, 30371, 33132, 39204, 40662, 49698, 54216, 60742, 66264, 74547, 78408, 81324, 91113, 99396, 121484, 149094, 162648, 182226, 198792, 223641, 242968, 273339, 298188, 364452, 447282, 546678, 596376, 728904, 820017, 894564, 1093356, 1640034, 1789128, 2186712, 2460051, 3280068, 4920102, 6560136, 9840204, 19680408]

約数ペア:

[(1, 19680408), (2, 9840204), (3, 6560136), (4, 4920102), (6, 3280068), (8, 2460051), (9, 2186712), (11, 1789128), (12, 1640034), (18, 1093356), (22, 894564), (24, 820017), (27, 728904), (33, 596376), (36, 546678), (44, 447282), (54, 364452), (66, 298188), (72, 273339), (81, 242968), (88, 223641), (99, 198792), (108, 182226), (121, 162648), (132, 149094), (162, 121484), (198, 99396), (216, 91113), (242, 81324), (251, 78408), (264, 74547), (297, 66264), (324, 60742), (363, 54216), (396, 49698), (484, 40662), (502, 39204), (594, 33132), (648, 30371), (726, 27108), (753, 26136), (792, 24849), (891, 22088), (968, 20331), (1004, 19602), (1089, 18072), (1188, 16566), (1452, 13554), (1506, 13068), (1782, 11044), (2008, 9801), (2178, 9036), (2259, 8712), (2376, 8283), (2761, 7128), (2904, 6777), (3012, 6534), (3267, 6024), (3564, 5522), (4356, 4518)]