12743720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2633}}^1$

素因数の和:2666

約数の個数: 48

約数和(自身を含む): 31528980

約数和(自身を除く): 18785260

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, 2633, 4840, 5266, 10532, 13165, 21064, 26330, 28963, 52660, 57926, 105320, 115852, 144815, 231704, 289630, 318593, 579260, 637186, 1158520, 1274372, 1592965, 2548744, 3185930, 6371860, 12743720]

約数ペア:

[(1, 12743720), (2, 6371860), (4, 3185930), (5, 2548744), (8, 1592965), (10, 1274372), (11, 1158520), (20, 637186), (22, 579260), (40, 318593), (44, 289630), (55, 231704), (88, 144815), (110, 115852), (121, 105320), (220, 57926), (242, 52660), (440, 28963), (484, 26330), (605, 21064), (968, 13165), (1210, 10532), (2420, 5266), (2633, 4840)]