28965680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8831}}^1$

素因数の和:8885

約数の個数: 40

約数和(自身を含む): 68995584

約数和(自身を除く): 40029904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8831, 17662, 35324, 44155, 70648, 88310, 141296, 176620, 353240, 362071, 706480, 724142, 1448284, 1810355, 2896568, 3620710, 5793136, 7241420, 14482840, 28965680]

約数ペア:

[(1, 28965680), (2, 14482840), (4, 7241420), (5, 5793136), (8, 3620710), (10, 2896568), (16, 1810355), (20, 1448284), (40, 724142), (41, 706480), (80, 362071), (82, 353240), (164, 176620), (205, 141296), (328, 88310), (410, 70648), (656, 44155), (820, 35324), (1640, 17662), (3280, 8831)]