163949320

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{4519}}^1$

素因数の和:5437

約数の個数: 32

約数和(自身を含む): 369374400

約数和(自身を除く): 205425080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 3628, 4519, 4535, 7256, 9038, 9070, 18076, 18140, 22595, 36152, 36280, 45190, 90380, 180760, 4098733, 8197466, 16394932, 20493665, 32789864, 40987330, 81974660, 163949320]

約数ペア:

[(1, 163949320), (2, 81974660), (4, 40987330), (5, 32789864), (8, 20493665), (10, 16394932), (20, 8197466), (40, 4098733), (907, 180760), (1814, 90380), (3628, 45190), (4519, 36280), (4535, 36152), (7256, 22595), (9038, 18140), (9070, 18076)]