210820220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15299}}^1$

素因数の和:15374

約数の個数: 48

約数和(自身を含む): 485805600

約数和(自身を除く): 274985380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 13780, 15299, 30598, 61196, 76495, 152990, 198887, 305980, 397774, 795548, 810847, 994435, 1621694, 1988870, 3243388, 3977740, 4054235, 8108470, 10541011, 16216940, 21082022, 42164044, 52705055, 105410110, 210820220]

約数ペア:

[(1, 210820220), (2, 105410110), (4, 52705055), (5, 42164044), (10, 21082022), (13, 16216940), (20, 10541011), (26, 8108470), (52, 4054235), (53, 3977740), (65, 3243388), (106, 1988870), (130, 1621694), (212, 994435), (260, 810847), (265, 795548), (530, 397774), (689, 305980), (1060, 198887), (1378, 152990), (2756, 76495), (3445, 61196), (6890, 30598), (13780, 15299)]