19276510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 38782800

約数和(自身を除く): 19506290

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 121, 178, 179, 242, 358, 445, 605, 890, 895, 979, 1210, 1790, 1958, 1969, 3938, 4895, 9790, 9845, 10769, 15931, 19690, 21538, 21659, 31862, 43318, 53845, 79655, 107690, 108295, 159310, 175241, 216590, 350482, 876205, 1752410, 1927651, 3855302, 9638255, 19276510]

約数ペア:

[(1, 19276510), (2, 9638255), (5, 3855302), (10, 1927651), (11, 1752410), (22, 876205), (55, 350482), (89, 216590), (110, 175241), (121, 159310), (178, 108295), (179, 107690), (242, 79655), (358, 53845), (445, 43318), (605, 31862), (890, 21659), (895, 21538), (979, 19690), (1210, 15931), (1790, 10769), (1958, 9845), (1969, 9790), (3938, 4895)]