20611960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{733}}^1$

素因数の和:800

約数の個数: 64

約数和(自身を含む): 50205600

約数和(自身を除く): 29593640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 733, 740, 760, 1406, 1466, 1480, 2812, 2932, 3515, 3665, 5624, 5864, 7030, 7330, 13927, 14060, 14660, 27121, 27854, 28120, 29320, 54242, 55708, 69635, 108484, 111416, 135605, 139270, 216968, 271210, 278540, 515299, 542420, 557080, 1030598, 1084840, 2061196, 2576495, 4122392, 5152990, 10305980, 20611960]

約数ペア:

[(1, 20611960), (2, 10305980), (4, 5152990), (5, 4122392), (8, 2576495), (10, 2061196), (19, 1084840), (20, 1030598), (37, 557080), (38, 542420), (40, 515299), (74, 278540), (76, 271210), (95, 216968), (148, 139270), (152, 135605), (185, 111416), (190, 108484), (296, 69635), (370, 55708), (380, 54242), (703, 29320), (733, 28120), (740, 27854), (760, 27121), (1406, 14660), (1466, 14060), (1480, 13927), (2812, 7330), (2932, 7030), (3515, 5864), (3665, 5624)]