20401590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{293}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 53851392

約数和(自身を除く): 33449802

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 211, 293, 330, 422, 586, 633, 879, 1055, 1266, 1465, 1758, 2110, 2321, 2930, 3165, 3223, 4395, 4642, 6330, 6446, 6963, 8790, 9669, 11605, 13926, 16115, 19338, 23210, 32230, 34815, 48345, 61823, 69630, 96690, 123646, 185469, 309115, 370938, 618230, 680053, 927345, 1360106, 1854690, 2040159, 3400265, 4080318, 6800530, 10200795, 20401590]

約数ペア:

[(1, 20401590), (2, 10200795), (3, 6800530), (5, 4080318), (6, 3400265), (10, 2040159), (11, 1854690), (15, 1360106), (22, 927345), (30, 680053), (33, 618230), (55, 370938), (66, 309115), (110, 185469), (165, 123646), (211, 96690), (293, 69630), (330, 61823), (422, 48345), (586, 34815), (633, 32230), (879, 23210), (1055, 19338), (1266, 16115), (1465, 13926), (1758, 11605), (2110, 9669), (2321, 8790), (2930, 6963), (3165, 6446), (3223, 6330), (4395, 4642)]