636438934520

素因数分解:

$2^3\times 5^1\times {\mathrm{16067}}^1\times {\mathrm{990289}}^1$

素因数の和:1006367

約数の個数: 32

約数和(自身を含む): 1432078174800

約数和(自身を除く): 795639240280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 16067, 32134, 64268, 80335, 128536, 160670, 321340, 642680, 990289, 1980578, 3961156, 4951445, 7922312, 9902890, 19805780, 39611560, 15910973363, 31821946726, 63643893452, 79554866815, 127287786904, 159109733630, 318219467260, 636438934520]

約数ペア:

[(1, 636438934520), (2, 318219467260), (4, 159109733630), (5, 127287786904), (8, 79554866815), (10, 63643893452), (20, 31821946726), (40, 15910973363), (16067, 39611560), (32134, 19805780), (64268, 9902890), (80335, 7922312), (128536, 4951445), (160670, 3961156), (321340, 1980578), (642680, 990289)]