16672640

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 40392000

約数和(自身を除く): 23719360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 239, 320, 436, 478, 545, 640, 872, 956, 1090, 1195, 1744, 1912, 2180, 2390, 3488, 3824, 4360, 4780, 6976, 7648, 8720, 9560, 13952, 15296, 17440, 19120, 26051, 30592, 34880, 38240, 52102, 69760, 76480, 104204, 130255, 152960, 208408, 260510, 416816, 521020, 833632, 1042040, 1667264, 2084080, 3334528, 4168160, 8336320, 16672640]

約数ペア:

[(1, 16672640), (2, 8336320), (4, 4168160), (5, 3334528), (8, 2084080), (10, 1667264), (16, 1042040), (20, 833632), (32, 521020), (40, 416816), (64, 260510), (80, 208408), (109, 152960), (128, 130255), (160, 104204), (218, 76480), (239, 69760), (320, 52102), (436, 38240), (478, 34880), (545, 30592), (640, 26051), (872, 19120), (956, 17440), (1090, 15296), (1195, 13952), (1744, 9560), (1912, 8720), (2180, 7648), (2390, 6976), (3488, 4780), (3824, 4360)]