18881450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{739}}^1$

素因数の和:831

約数の個数: 48

約数和(自身を含む): 40741440

約数和(自身を除く): 21859990

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 73, 146, 175, 350, 365, 511, 730, 739, 1022, 1478, 1825, 2555, 3650, 3695, 5110, 5173, 7390, 10346, 12775, 18475, 25550, 25865, 36950, 51730, 53947, 107894, 129325, 258650, 269735, 377629, 539470, 755258, 1348675, 1888145, 2697350, 3776290, 9440725, 18881450]

約数ペア:

[(1, 18881450), (2, 9440725), (5, 3776290), (7, 2697350), (10, 1888145), (14, 1348675), (25, 755258), (35, 539470), (50, 377629), (70, 269735), (73, 258650), (146, 129325), (175, 107894), (350, 53947), (365, 51730), (511, 36950), (730, 25865), (739, 25550), (1022, 18475), (1478, 12775), (1825, 10346), (2555, 7390), (3650, 5173), (3695, 5110)]