31004120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{110729}}^1$

素因数の和:110747

約数の個数: 32

約数和(自身を含む): 79725600

約数和(自身を除く): 48721480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 110729, 221458, 442916, 553645, 775103, 885832, 1107290, 1550206, 2214580, 3100412, 3875515, 4429160, 6200824, 7751030, 15502060, 31004120]

約数ペア:

[(1, 31004120), (2, 15502060), (4, 7751030), (5, 6200824), (7, 4429160), (8, 3875515), (10, 3100412), (14, 2214580), (20, 1550206), (28, 1107290), (35, 885832), (40, 775103), (56, 553645), (70, 442916), (140, 221458), (280, 110729)]