145960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 32

約数和(自身を含む): 340200

約数和(自身を除く): 194240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 178, 205, 328, 356, 410, 445, 712, 820, 890, 1640, 1780, 3560, 3649, 7298, 14596, 18245, 29192, 36490, 72980, 145960]

約数ペア:

[(1, 145960), (2, 72980), (4, 36490), (5, 29192), (8, 18245), (10, 14596), (20, 7298), (40, 3649), (41, 3560), (82, 1780), (89, 1640), (164, 890), (178, 820), (205, 712), (328, 445), (356, 410)]