81381448

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 169344000

約数和(自身を除く): 87962552

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 97, 124, 136, 194, 199, 248, 388, 398, 527, 776, 796, 1054, 1592, 1649, 2108, 3007, 3298, 3383, 4216, 6014, 6169, 6596, 6766, 12028, 12338, 13192, 13532, 19303, 24056, 24676, 27064, 38606, 49352, 51119, 77212, 102238, 104873, 154424, 204476, 209746, 328151, 408952, 419492, 598393, 656302, 838984, 1196786, 1312604, 2393572, 2625208, 4787144, 10172681, 20345362, 40690724, 81381448]

約数ペア:

[(1, 81381448), (2, 40690724), (4, 20345362), (8, 10172681), (17, 4787144), (31, 2625208), (34, 2393572), (62, 1312604), (68, 1196786), (97, 838984), (124, 656302), (136, 598393), (194, 419492), (199, 408952), (248, 328151), (388, 209746), (398, 204476), (527, 154424), (776, 104873), (796, 102238), (1054, 77212), (1592, 51119), (1649, 49352), (2108, 38606), (3007, 27064), (3298, 24676), (3383, 24056), (4216, 19303), (6014, 13532), (6169, 13192), (6596, 12338), (6766, 12028)]