400991504

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{7369}}^1$

素因数の和:7575

約数の個数: 40

約数和(自身を含む): 822492000

約数和(自身を除く): 421500496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 179, 304, 358, 716, 1432, 2864, 3401, 6802, 7369, 13604, 14738, 27208, 29476, 54416, 58952, 117904, 140011, 280022, 560044, 1120088, 1319051, 2240176, 2638102, 5276204, 10552408, 21104816, 25061969, 50123938, 100247876, 200495752, 400991504]

約数ペア:

[(1, 400991504), (2, 200495752), (4, 100247876), (8, 50123938), (16, 25061969), (19, 21104816), (38, 10552408), (76, 5276204), (152, 2638102), (179, 2240176), (304, 1319051), (358, 1120088), (716, 560044), (1432, 280022), (2864, 140011), (3401, 117904), (6802, 58952), (7369, 54416), (13604, 29476), (14738, 27208)]