81301290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{7901}}^1$

素因数の和:7932

約数の個数: 64

約数和(自身を含む): 227577600

約数和(自身を除く): 146276310

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 1029, 1470, 1715, 2058, 3430, 5145, 7901, 10290, 15802, 23703, 39505, 47406, 55307, 79010, 110614, 118515, 165921, 237030, 276535, 331842, 387149, 553070, 774298, 829605, 1161447, 1659210, 1935745, 2322894, 2710043, 3871490, 5420086, 5807235, 8130129, 11614470, 13550215, 16260258, 27100430, 40650645, 81301290]

約数ペア:

[(1, 81301290), (2, 40650645), (3, 27100430), (5, 16260258), (6, 13550215), (7, 11614470), (10, 8130129), (14, 5807235), (15, 5420086), (21, 3871490), (30, 2710043), (35, 2322894), (42, 1935745), (49, 1659210), (70, 1161447), (98, 829605), (105, 774298), (147, 553070), (210, 387149), (245, 331842), (294, 276535), (343, 237030), (490, 165921), (686, 118515), (735, 110614), (1029, 79010), (1470, 55307), (1715, 47406), (2058, 39505), (3430, 23703), (5145, 15802), (7901, 10290)]