2780470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 6552576

約数和(自身を除く): 3772106

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 157, 161, 230, 253, 314, 322, 385, 506, 770, 785, 805, 1099, 1265, 1570, 1610, 1727, 1771, 2198, 2530, 3454, 3542, 3611, 5495, 7222, 8635, 8855, 10990, 12089, 17270, 17710, 18055, 24178, 25277, 36110, 39721, 50554, 60445, 79442, 120890, 126385, 198605, 252770, 278047, 397210, 556094, 1390235, 2780470]

約数ペア:

[(1, 2780470), (2, 1390235), (5, 556094), (7, 397210), (10, 278047), (11, 252770), (14, 198605), (22, 126385), (23, 120890), (35, 79442), (46, 60445), (55, 50554), (70, 39721), (77, 36110), (110, 25277), (115, 24178), (154, 18055), (157, 17710), (161, 17270), (230, 12089), (253, 10990), (314, 8855), (322, 8635), (385, 7222), (506, 5495), (770, 3611), (785, 3542), (805, 3454), (1099, 2530), (1265, 2198), (1570, 1771), (1610, 1727)]