19048840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 45975600

約数和(自身を除く): 26926760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 109, 136, 170, 218, 257, 340, 436, 514, 545, 680, 872, 1028, 1090, 1285, 1853, 2056, 2180, 2570, 3706, 4360, 4369, 5140, 7412, 8738, 9265, 10280, 14824, 17476, 18530, 21845, 28013, 34952, 37060, 43690, 56026, 74120, 87380, 112052, 140065, 174760, 224104, 280130, 476221, 560260, 952442, 1120520, 1904884, 2381105, 3809768, 4762210, 9524420, 19048840]

約数ペア:

[(1, 19048840), (2, 9524420), (4, 4762210), (5, 3809768), (8, 2381105), (10, 1904884), (17, 1120520), (20, 952442), (34, 560260), (40, 476221), (68, 280130), (85, 224104), (109, 174760), (136, 140065), (170, 112052), (218, 87380), (257, 74120), (340, 56026), (436, 43690), (514, 37060), (545, 34952), (680, 28013), (872, 21845), (1028, 18530), (1090, 17476), (1285, 14824), (1853, 10280), (2056, 9265), (2180, 8738), (2570, 7412), (3706, 5140), (4360, 4369)]