398879152

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{31517}}^1$

素因数の和:31645

約数の個数: 40

約数和(自身を含む): 891076896

約数和(自身を除く): 492197744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1582, 1808, 3164, 6328, 12656, 31517, 63034, 126068, 220619, 252136, 441238, 504272, 882476, 1764952, 3529904, 3561421, 7122842, 14245684, 24929947, 28491368, 49859894, 56982736, 99719788, 199439576, 398879152]

約数ペア:

[(1, 398879152), (2, 199439576), (4, 99719788), (7, 56982736), (8, 49859894), (14, 28491368), (16, 24929947), (28, 14245684), (56, 7122842), (112, 3561421), (113, 3529904), (226, 1764952), (452, 882476), (791, 504272), (904, 441238), (1582, 252136), (1808, 220619), (3164, 126068), (6328, 63034), (12656, 31517)]