18410840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1399}}^1$

素因数の和:1464

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 29973160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1399, 1645, 1880, 2632, 2798, 3290, 5596, 6580, 6995, 9793, 11192, 13160, 13990, 19586, 27980, 39172, 48965, 55960, 65753, 78344, 97930, 131506, 195860, 263012, 328765, 391720, 460271, 526024, 657530, 920542, 1315060, 1841084, 2301355, 2630120, 3682168, 4602710, 9205420, 18410840]

約数ペア:

[(1, 18410840), (2, 9205420), (4, 4602710), (5, 3682168), (7, 2630120), (8, 2301355), (10, 1841084), (14, 1315060), (20, 920542), (28, 657530), (35, 526024), (40, 460271), (47, 391720), (56, 328765), (70, 263012), (94, 195860), (140, 131506), (188, 97930), (235, 78344), (280, 65753), (329, 55960), (376, 48965), (470, 39172), (658, 27980), (940, 19586), (1316, 13990), (1399, 13160), (1645, 11192), (1880, 9793), (2632, 6995), (2798, 6580), (3290, 5596)]