398873340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2215963}}^1$

素因数の和:2215978

約数の個数: 36

約数和(自身を含む): 1209916344

約数和(自身を除く): 811043004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2215963, 4431926, 6647889, 8863852, 11079815, 13295778, 19943667, 22159630, 26591556, 33239445, 39887334, 44319260, 66478890, 79774668, 99718335, 132957780, 199436670, 398873340]

約数ペア:

[(1, 398873340), (2, 199436670), (3, 132957780), (4, 99718335), (5, 79774668), (6, 66478890), (9, 44319260), (10, 39887334), (12, 33239445), (15, 26591556), (18, 22159630), (20, 19943667), (30, 13295778), (36, 11079815), (45, 8863852), (60, 6647889), (90, 4431926), (180, 2215963)]