16578940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1499}}^1$

素因数の和:1594

約数の個数: 48

約数和(自身を含む): 40320000

約数和(自身を除く): 23741060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1499, 1580, 2212, 2765, 2998, 5530, 5996, 7495, 10493, 11060, 14990, 20986, 29980, 41972, 52465, 104930, 118421, 209860, 236842, 473684, 592105, 828947, 1184210, 1657894, 2368420, 3315788, 4144735, 8289470, 16578940]

約数ペア:

[(1, 16578940), (2, 8289470), (4, 4144735), (5, 3315788), (7, 2368420), (10, 1657894), (14, 1184210), (20, 828947), (28, 592105), (35, 473684), (70, 236842), (79, 209860), (140, 118421), (158, 104930), (316, 52465), (395, 41972), (553, 29980), (790, 20986), (1106, 14990), (1499, 11060), (1580, 10493), (2212, 7495), (2765, 5996), (2998, 5530)]