287747940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{208513}}^1$

素因数の和:208548

約数の個数: 48

約数和(自身を含む): 840728448

約数和(自身を除く): 552980508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 208513, 417026, 625539, 834052, 1042565, 1251078, 2085130, 2502156, 3127695, 4170260, 4795799, 6255390, 9591598, 12510780, 14387397, 19183196, 23978995, 28774794, 47957990, 57549588, 71936985, 95915980, 143873970, 287747940]

約数ペア:

[(1, 287747940), (2, 143873970), (3, 95915980), (4, 71936985), (5, 57549588), (6, 47957990), (10, 28774794), (12, 23978995), (15, 19183196), (20, 14387397), (23, 12510780), (30, 9591598), (46, 6255390), (60, 4795799), (69, 4170260), (92, 3127695), (115, 2502156), (138, 2085130), (230, 1251078), (276, 1042565), (345, 834052), (460, 625539), (690, 417026), (1380, 208513)]