42181420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1279}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 94832640

約数和(自身を除く): 52651220

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 97, 170, 194, 340, 388, 485, 970, 1279, 1649, 1940, 2558, 3298, 5116, 6395, 6596, 8245, 12790, 16490, 21743, 25580, 32980, 43486, 86972, 108715, 124063, 217430, 248126, 434860, 496252, 620315, 1240630, 2109071, 2481260, 4218142, 8436284, 10545355, 21090710, 42181420]

約数ペア:

[(1, 42181420), (2, 21090710), (4, 10545355), (5, 8436284), (10, 4218142), (17, 2481260), (20, 2109071), (34, 1240630), (68, 620315), (85, 496252), (97, 434860), (170, 248126), (194, 217430), (340, 124063), (388, 108715), (485, 86972), (970, 43486), (1279, 32980), (1649, 25580), (1940, 21743), (2558, 16490), (3298, 12790), (5116, 8245), (6395, 6596)]