19660630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 42508800

約数和(自身を除く): 22848170

約数列:

[1, 2, 5, 10, 11, 19, 22, 23, 38, 46, 55, 95, 110, 115, 190, 209, 230, 253, 409, 418, 437, 506, 818, 874, 1045, 1265, 2045, 2090, 2185, 2530, 4090, 4370, 4499, 4807, 7771, 8998, 9407, 9614, 15542, 18814, 22495, 24035, 38855, 44990, 47035, 48070, 77710, 85481, 94070, 103477, 170962, 178733, 206954, 357466, 427405, 517385, 854810, 893665, 1034770, 1787330, 1966063, 3932126, 9830315, 19660630]

約数ペア:

[(1, 19660630), (2, 9830315), (5, 3932126), (10, 1966063), (11, 1787330), (19, 1034770), (22, 893665), (23, 854810), (38, 517385), (46, 427405), (55, 357466), (95, 206954), (110, 178733), (115, 170962), (190, 103477), (209, 94070), (230, 85481), (253, 77710), (409, 48070), (418, 47035), (437, 44990), (506, 38855), (818, 24035), (874, 22495), (1045, 18814), (1265, 15542), (2045, 9614), (2090, 9407), (2185, 8998), (2530, 7771), (4090, 4807), (4370, 4499)]