251583280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241907}}^1$

素因数の和:241933

約数の個数: 40

約数和(自身を含む): 629928432

約数和(自身を除く): 378345152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 241907, 483814, 967628, 1209535, 1935256, 2419070, 3144791, 3870512, 4838140, 6289582, 9676280, 12579164, 15723955, 19352560, 25158328, 31447910, 50316656, 62895820, 125791640, 251583280]

約数ペア:

[(1, 251583280), (2, 125791640), (4, 62895820), (5, 50316656), (8, 31447910), (10, 25158328), (13, 19352560), (16, 15723955), (20, 12579164), (26, 9676280), (40, 6289582), (52, 4838140), (65, 3870512), (80, 3144791), (104, 2419070), (130, 1935256), (208, 1209535), (260, 967628), (520, 483814), (1040, 241907)]