19578704

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{641}}^1$

素因数の和:755

約数の個数: 40

約数和(自身を含む): 40122432

約数和(自身を除く): 20543728

約数列:

[1, 2, 4, 8, 16, 23, 46, 83, 92, 166, 184, 332, 368, 641, 664, 1282, 1328, 1909, 2564, 3818, 5128, 7636, 10256, 14743, 15272, 29486, 30544, 53203, 58972, 106406, 117944, 212812, 235888, 425624, 851248, 1223669, 2447338, 4894676, 9789352, 19578704]

約数ペア:

[(1, 19578704), (2, 9789352), (4, 4894676), (8, 2447338), (16, 1223669), (23, 851248), (46, 425624), (83, 235888), (92, 212812), (166, 117944), (184, 106406), (332, 58972), (368, 53203), (641, 30544), (664, 29486), (1282, 15272), (1328, 14743), (1909, 10256), (2564, 7636), (3818, 5128)]