28139874

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 68428800

約数和(自身を除く): 40288926

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 179, 197, 266, 358, 394, 399, 537, 591, 798, 1074, 1182, 1253, 1379, 2506, 2758, 3401, 3743, 3759, 4137, 6802, 7486, 7518, 8274, 10203, 11229, 20406, 22458, 23807, 26201, 35263, 47614, 52402, 70526, 71421, 78603, 105789, 142842, 157206, 211578, 246841, 493682, 669997, 740523, 1339994, 1481046, 2009991, 4019982, 4689979, 9379958, 14069937, 28139874]

約数ペア:

[(1, 28139874), (2, 14069937), (3, 9379958), (6, 4689979), (7, 4019982), (14, 2009991), (19, 1481046), (21, 1339994), (38, 740523), (42, 669997), (57, 493682), (114, 246841), (133, 211578), (179, 157206), (197, 142842), (266, 105789), (358, 78603), (394, 71421), (399, 70526), (537, 52402), (591, 47614), (798, 35263), (1074, 26201), (1182, 23807), (1253, 22458), (1379, 20406), (2506, 11229), (2758, 10203), (3401, 8274), (3743, 7518), (3759, 7486), (4137, 6802)]