87820020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{487889}}^1$

素因数の和:487904

約数の個数: 36

約数和(自身を含む): 266387940

約数和(自身を除く): 178567920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 487889, 975778, 1463667, 1951556, 2439445, 2927334, 4391001, 4878890, 5854668, 7318335, 8782002, 9757780, 14636670, 17564004, 21955005, 29273340, 43910010, 87820020]

約数ペア:

[(1, 87820020), (2, 43910010), (3, 29273340), (4, 21955005), (5, 17564004), (6, 14636670), (9, 9757780), (10, 8782002), (12, 7318335), (15, 5854668), (18, 4878890), (20, 4391001), (30, 2927334), (36, 2439445), (45, 1951556), (60, 1463667), (90, 975778), (180, 487889)]