16040000

素因数分解:

$2^6\times 5^4\times {\mathrm{401}}^1$

素因数の和:433

約数の個数: 70

約数和(自身を含む): 39873174

約数和(自身を除く): 23833174

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 401, 500, 625, 800, 802, 1000, 1250, 1600, 1604, 2000, 2005, 2500, 3208, 4000, 4010, 5000, 6416, 8000, 8020, 10000, 10025, 12832, 16040, 20000, 20050, 25664, 32080, 40000, 40100, 50125, 64160, 80200, 100250, 128320, 160400, 200500, 250625, 320800, 401000, 501250, 641600, 802000, 1002500, 1604000, 2005000, 3208000, 4010000, 8020000, 16040000]

約数ペア:

[(1, 16040000), (2, 8020000), (4, 4010000), (5, 3208000), (8, 2005000), (10, 1604000), (16, 1002500), (20, 802000), (25, 641600), (32, 501250), (40, 401000), (50, 320800), (64, 250625), (80, 200500), (100, 160400), (125, 128320), (160, 100250), (200, 80200), (250, 64160), (320, 50125), (400, 40100), (401, 40000), (500, 32080), (625, 25664), (800, 20050), (802, 20000), (1000, 16040), (1250, 12832), (1600, 10025), (1604, 10000), (2000, 8020), (2005, 8000), (2500, 6416), (3208, 5000), (4000, 4010)]