20598880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4153}}^1$

素因数の和:4199

約数の個数: 48

約数和(自身を含む): 50246784

約数和(自身を除く): 29647904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4153, 4960, 8306, 16612, 20765, 33224, 41530, 66448, 83060, 128743, 132896, 166120, 257486, 332240, 514972, 643715, 664480, 1029944, 1287430, 2059888, 2574860, 4119776, 5149720, 10299440, 20598880]

約数ペア:

[(1, 20598880), (2, 10299440), (4, 5149720), (5, 4119776), (8, 2574860), (10, 2059888), (16, 1287430), (20, 1029944), (31, 664480), (32, 643715), (40, 514972), (62, 332240), (80, 257486), (124, 166120), (155, 132896), (160, 128743), (248, 83060), (310, 66448), (496, 41530), (620, 33224), (992, 20765), (1240, 16612), (2480, 8306), (4153, 4960)]