178869780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21143}}^1$

素因数の和:21205

約数の個数: 72

約数和(自身を含む): 554141952

約数和(自身を除く): 375272172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 4230, 8460, 21143, 42286, 63429, 84572, 105715, 126858, 190287, 211430, 253716, 317145, 380574, 422860, 634290, 761148, 951435, 993721, 1268580, 1902870, 1987442, 2981163, 3805740, 3974884, 4968605, 5962326, 8943489, 9937210, 11924652, 14905815, 17886978, 19874420, 29811630, 35773956, 44717445, 59623260, 89434890, 178869780]

約数ペア:

[(1, 178869780), (2, 89434890), (3, 59623260), (4, 44717445), (5, 35773956), (6, 29811630), (9, 19874420), (10, 17886978), (12, 14905815), (15, 11924652), (18, 9937210), (20, 8943489), (30, 5962326), (36, 4968605), (45, 3974884), (47, 3805740), (60, 2981163), (90, 1987442), (94, 1902870), (141, 1268580), (180, 993721), (188, 951435), (235, 761148), (282, 634290), (423, 422860), (470, 380574), (564, 317145), (705, 253716), (846, 211430), (940, 190287), (1410, 126858), (1692, 105715), (2115, 84572), (2820, 63429), (4230, 42286), (8460, 21143)]