28680318

素因数分解:

$2^1\times 3^7\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 66124800

約数和(自身を除く): 37444482

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 83, 158, 162, 166, 237, 243, 249, 474, 486, 498, 711, 729, 747, 1422, 1458, 1494, 2133, 2187, 2241, 4266, 4374, 4482, 6399, 6557, 6723, 12798, 13114, 13446, 19197, 19671, 20169, 38394, 39342, 40338, 57591, 59013, 60507, 115182, 118026, 121014, 172773, 177039, 181521, 345546, 354078, 363042, 531117, 1062234, 1593351, 3186702, 4780053, 9560106, 14340159, 28680318]

約数ペア:

[(1, 28680318), (2, 14340159), (3, 9560106), (6, 4780053), (9, 3186702), (18, 1593351), (27, 1062234), (54, 531117), (79, 363042), (81, 354078), (83, 345546), (158, 181521), (162, 177039), (166, 172773), (237, 121014), (243, 118026), (249, 115182), (474, 60507), (486, 59013), (498, 57591), (711, 40338), (729, 39342), (747, 38394), (1422, 20169), (1458, 19671), (1494, 19197), (2133, 13446), (2187, 13114), (2241, 12798), (4266, 6723), (4374, 6557), (4482, 6399)]