18408340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 41065920

約数和(自身を除く): 22657580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 193, 251, 380, 386, 502, 772, 965, 1004, 1255, 1930, 2510, 3667, 3860, 4769, 5020, 7334, 9538, 14668, 18335, 19076, 23845, 36670, 47690, 48443, 73340, 95380, 96886, 193772, 242215, 484430, 920417, 968860, 1840834, 3681668, 4602085, 9204170, 18408340]

約数ペア:

[(1, 18408340), (2, 9204170), (4, 4602085), (5, 3681668), (10, 1840834), (19, 968860), (20, 920417), (38, 484430), (76, 242215), (95, 193772), (190, 96886), (193, 95380), (251, 73340), (380, 48443), (386, 47690), (502, 36670), (772, 23845), (965, 19076), (1004, 18335), (1255, 14668), (1930, 9538), (2510, 7334), (3667, 5020), (3860, 4769)]