42540520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{887}}^1$

素因数の和:1018

約数の個数: 64

約数和(自身を含む): 105494400

約数和(自身を除く): 62953880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 872, 887, 1090, 1199, 1774, 2180, 2398, 3548, 4360, 4435, 4796, 5995, 7096, 8870, 9592, 9757, 11990, 17740, 19514, 23980, 35480, 39028, 47960, 48785, 78056, 96683, 97570, 193366, 195140, 386732, 390280, 483415, 773464, 966830, 1063513, 1933660, 2127026, 3867320, 4254052, 5317565, 8508104, 10635130, 21270260, 42540520]

約数ペア:

[(1, 42540520), (2, 21270260), (4, 10635130), (5, 8508104), (8, 5317565), (10, 4254052), (11, 3867320), (20, 2127026), (22, 1933660), (40, 1063513), (44, 966830), (55, 773464), (88, 483415), (109, 390280), (110, 386732), (218, 195140), (220, 193366), (436, 97570), (440, 96683), (545, 78056), (872, 48785), (887, 47960), (1090, 39028), (1199, 35480), (1774, 23980), (2180, 19514), (2398, 17740), (3548, 11990), (4360, 9757), (4435, 9592), (4796, 8870), (5995, 7096)]