18551720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3833}}^1$

素因数の和:3866

約数の個数: 48

約数和(自身を含む): 45892980

約数和(自身を除く): 27341260

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 3833, 4840, 7666, 15332, 19165, 30664, 38330, 42163, 76660, 84326, 153320, 168652, 210815, 337304, 421630, 463793, 843260, 927586, 1686520, 1855172, 2318965, 3710344, 4637930, 9275860, 18551720]

約数ペア:

[(1, 18551720), (2, 9275860), (4, 4637930), (5, 3710344), (8, 2318965), (10, 1855172), (11, 1686520), (20, 927586), (22, 843260), (40, 463793), (44, 421630), (55, 337304), (88, 210815), (110, 168652), (121, 153320), (220, 84326), (242, 76660), (440, 42163), (484, 38330), (605, 30664), (968, 19165), (1210, 15332), (2420, 7666), (3833, 4840)]