379995440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{22727}}^1$

素因数の和:22770

約数の個数: 80

約数和(自身を含む): 1014577920

約数和(自身を除く): 634582480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 8360, 16720, 22727, 45454, 90908, 113635, 181816, 227270, 249997, 363632, 431813, 454540, 499994, 863626, 909080, 999988, 1249985, 1727252, 1818160, 1999976, 2159065, 2499970, 3454504, 3999952, 4318130, 4749943, 4999940, 6909008, 8636260, 9499886, 9999880, 17272520, 18999772, 19999760, 23749715, 34545040, 37999544, 47499430, 75999088, 94998860, 189997720, 379995440]

約数ペア:

[(1, 379995440), (2, 189997720), (4, 94998860), (5, 75999088), (8, 47499430), (10, 37999544), (11, 34545040), (16, 23749715), (19, 19999760), (20, 18999772), (22, 17272520), (38, 9999880), (40, 9499886), (44, 8636260), (55, 6909008), (76, 4999940), (80, 4749943), (88, 4318130), (95, 3999952), (110, 3454504), (152, 2499970), (176, 2159065), (190, 1999976), (209, 1818160), (220, 1727252), (304, 1249985), (380, 999988), (418, 909080), (440, 863626), (760, 499994), (836, 454540), (880, 431813), (1045, 363632), (1520, 249997), (1672, 227270), (2090, 181816), (3344, 113635), (4180, 90908), (8360, 45454), (16720, 22727)]