390221758

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:868

約数の個数: 32

約数和(自身を含む): 616442688

約数和(自身を除く): 226220930

約数列:

[1, 2, 37, 61, 74, 122, 137, 274, 631, 1262, 2257, 4514, 5069, 8357, 10138, 16714, 23347, 38491, 46694, 76982, 86447, 172894, 309209, 618418, 1424167, 2848334, 3198539, 5273267, 6397078, 10546534, 195110879, 390221758]

約数ペア:

[(1, 390221758), (2, 195110879), (37, 10546534), (61, 6397078), (74, 5273267), (122, 3198539), (137, 2848334), (274, 1424167), (631, 618418), (1262, 309209), (2257, 172894), (4514, 86447), (5069, 76982), (8357, 46694), (10138, 38491), (16714, 23347)]