81744232

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 167832000

約数和(自身を除く): 86087768

約数列:

[1, 2, 4, 8, 19, 38, 53, 73, 76, 106, 139, 146, 152, 212, 278, 292, 424, 556, 584, 1007, 1112, 1387, 2014, 2641, 2774, 3869, 4028, 5282, 5548, 7367, 7738, 8056, 10147, 10564, 11096, 14734, 15476, 20294, 21128, 29468, 30952, 40588, 58936, 73511, 81176, 139973, 147022, 192793, 279946, 294044, 385586, 537791, 559892, 588088, 771172, 1075582, 1119784, 1542344, 2151164, 4302328, 10218029, 20436058, 40872116, 81744232]

約数ペア:

[(1, 81744232), (2, 40872116), (4, 20436058), (8, 10218029), (19, 4302328), (38, 2151164), (53, 1542344), (73, 1119784), (76, 1075582), (106, 771172), (139, 588088), (146, 559892), (152, 537791), (212, 385586), (278, 294044), (292, 279946), (424, 192793), (556, 147022), (584, 139973), (1007, 81176), (1112, 73511), (1387, 58936), (2014, 40588), (2641, 30952), (2774, 29468), (3869, 21128), (4028, 20294), (5282, 15476), (5548, 14734), (7367, 11096), (7738, 10564), (8056, 10147)]