20277780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8243}}^1$

素因数の和:8296

約数の個数: 48

約数和(自身を含む): 58169664

約数和(自身を除く): 37891884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8243, 16486, 24729, 32972, 41215, 49458, 82430, 98916, 123645, 164860, 247290, 337963, 494580, 675926, 1013889, 1351852, 1689815, 2027778, 3379630, 4055556, 5069445, 6759260, 10138890, 20277780]

約数ペア:

[(1, 20277780), (2, 10138890), (3, 6759260), (4, 5069445), (5, 4055556), (6, 3379630), (10, 2027778), (12, 1689815), (15, 1351852), (20, 1013889), (30, 675926), (41, 494580), (60, 337963), (82, 247290), (123, 164860), (164, 123645), (205, 98916), (246, 82430), (410, 49458), (492, 41215), (615, 32972), (820, 24729), (1230, 16486), (2460, 8243)]