28261618

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 28140302

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 79, 101, 154, 158, 161, 202, 253, 322, 506, 553, 707, 869, 1106, 1111, 1414, 1738, 1771, 1817, 2222, 2323, 3542, 3634, 4646, 6083, 7777, 7979, 12166, 12719, 15554, 15958, 16261, 19987, 25438, 25553, 32522, 39974, 51106, 55853, 87769, 111706, 139909, 175538, 178871, 183517, 279818, 357742, 367034, 614383, 1228766, 1284619, 2018687, 2569238, 4037374, 14130809, 28261618]

約数ペア:

[(1, 28261618), (2, 14130809), (7, 4037374), (11, 2569238), (14, 2018687), (22, 1284619), (23, 1228766), (46, 614383), (77, 367034), (79, 357742), (101, 279818), (154, 183517), (158, 178871), (161, 175538), (202, 139909), (253, 111706), (322, 87769), (506, 55853), (553, 51106), (707, 39974), (869, 32522), (1106, 25553), (1111, 25438), (1414, 19987), (1738, 16261), (1771, 15958), (1817, 15554), (2222, 12719), (2323, 12166), (3542, 7979), (3634, 7777), (4646, 6083)]