81242728

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1399}}^1$

素因数の和:1490

約数の個数: 64

約数和(自身を含む): 187488000

約数和(自身を除く): 106245272

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 61, 68, 119, 122, 136, 238, 244, 427, 476, 488, 854, 952, 1037, 1399, 1708, 2074, 2798, 3416, 4148, 5596, 7259, 8296, 9793, 11192, 14518, 19586, 23783, 29036, 39172, 47566, 58072, 78344, 85339, 95132, 166481, 170678, 190264, 332962, 341356, 597373, 665924, 682712, 1194746, 1331848, 1450763, 2389492, 2901526, 4778984, 5803052, 10155341, 11606104, 20310682, 40621364, 81242728]

約数ペア:

[(1, 81242728), (2, 40621364), (4, 20310682), (7, 11606104), (8, 10155341), (14, 5803052), (17, 4778984), (28, 2901526), (34, 2389492), (56, 1450763), (61, 1331848), (68, 1194746), (119, 682712), (122, 665924), (136, 597373), (238, 341356), (244, 332962), (427, 190264), (476, 170678), (488, 166481), (854, 95132), (952, 85339), (1037, 78344), (1399, 58072), (1708, 47566), (2074, 39172), (2798, 29036), (3416, 23783), (4148, 19586), (5596, 14518), (7259, 11192), (8296, 9793)]