81900698

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 148055040

約数和(自身を除く): 66154342

約数列:

[1, 2, 11, 22, 29, 31, 41, 58, 62, 82, 101, 202, 319, 341, 451, 638, 682, 899, 902, 1111, 1189, 1271, 1798, 2222, 2378, 2542, 2929, 3131, 4141, 5858, 6262, 8282, 9889, 13079, 13981, 19778, 26158, 27962, 32219, 34441, 36859, 45551, 64438, 68882, 73718, 90799, 91102, 120089, 128371, 181598, 240178, 256742, 405449, 810898, 998789, 1320979, 1412081, 1997578, 2641958, 2824162, 3722759, 7445518, 40950349, 81900698]

約数ペア:

[(1, 81900698), (2, 40950349), (11, 7445518), (22, 3722759), (29, 2824162), (31, 2641958), (41, 1997578), (58, 1412081), (62, 1320979), (82, 998789), (101, 810898), (202, 405449), (319, 256742), (341, 240178), (451, 181598), (638, 128371), (682, 120089), (899, 91102), (902, 90799), (1111, 73718), (1189, 68882), (1271, 64438), (1798, 45551), (2222, 36859), (2378, 34441), (2542, 32219), (2929, 27962), (3131, 26158), (4141, 19778), (5858, 13981), (6262, 13079), (8282, 9889)]