20261979440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8170153}}^1$

素因数の和:8170197

約数の個数: 40

約数和(自身を含む): 48628756608

約数和(自身を除く): 28366777168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8170153, 16340306, 32680612, 40850765, 65361224, 81701530, 130722448, 163403060, 253274743, 326806120, 506549486, 653612240, 1013098972, 1266373715, 2026197944, 2532747430, 4052395888, 5065494860, 10130989720, 20261979440]

約数ペア:

[(1, 20261979440), (2, 10130989720), (4, 5065494860), (5, 4052395888), (8, 2532747430), (10, 2026197944), (16, 1266373715), (20, 1013098972), (31, 653612240), (40, 506549486), (62, 326806120), (80, 253274743), (124, 163403060), (155, 130722448), (248, 81701530), (310, 65361224), (496, 40850765), (620, 32680612), (1240, 16340306), (2480, 8170153)]