19405020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{8741}}^1$

素因数の和:8790

約数の個数: 48

約数和(自身を含む): 55808928

約数和(自身を除く): 36403908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 8741, 17482, 26223, 34964, 43705, 52446, 87410, 104892, 131115, 174820, 262230, 323417, 524460, 646834, 970251, 1293668, 1617085, 1940502, 3234170, 3881004, 4851255, 6468340, 9702510, 19405020]

約数ペア:

[(1, 19405020), (2, 9702510), (3, 6468340), (4, 4851255), (5, 3881004), (6, 3234170), (10, 1940502), (12, 1617085), (15, 1293668), (20, 970251), (30, 646834), (37, 524460), (60, 323417), (74, 262230), (111, 174820), (148, 131115), (185, 104892), (222, 87410), (370, 52446), (444, 43705), (555, 34964), (740, 26223), (1110, 17482), (2220, 8741)]