19880350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:817

約数の個数: 48

約数和(自身を含む): 42854400

約数和(自身を除く): 22974050

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 79, 158, 175, 350, 395, 553, 719, 790, 1106, 1438, 1975, 2765, 3595, 3950, 5033, 5530, 7190, 10066, 13825, 17975, 25165, 27650, 35950, 50330, 56801, 113602, 125825, 251650, 284005, 397607, 568010, 795214, 1420025, 1988035, 2840050, 3976070, 9940175, 19880350]

約数ペア:

[(1, 19880350), (2, 9940175), (5, 3976070), (7, 2840050), (10, 1988035), (14, 1420025), (25, 795214), (35, 568010), (50, 397607), (70, 284005), (79, 251650), (158, 125825), (175, 113602), (350, 56801), (395, 50330), (553, 35950), (719, 27650), (790, 25165), (1106, 17975), (1438, 13825), (1975, 10066), (2765, 7190), (3595, 5530), (3950, 5033)]