20218986520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{50593}}^1$

素因数の和:50804

約数の個数: 64

約数和(自身を含む): 46408864320

約数和(自身を除く): 26189877800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 103, 194, 206, 388, 412, 485, 515, 776, 824, 970, 1030, 1940, 2060, 3880, 4120, 9991, 19982, 39964, 49955, 50593, 79928, 99910, 101186, 199820, 202372, 252965, 399640, 404744, 505930, 1011860, 2023720, 4907521, 5211079, 9815042, 10422158, 19630084, 20844316, 24537605, 26055395, 39260168, 41688632, 49075210, 52110790, 98150420, 104221580, 196300840, 208443160, 505474663, 1010949326, 2021898652, 2527373315, 4043797304, 5054746630, 10109493260, 20218986520]

約数ペア:

[(1, 20218986520), (2, 10109493260), (4, 5054746630), (5, 4043797304), (8, 2527373315), (10, 2021898652), (20, 1010949326), (40, 505474663), (97, 208443160), (103, 196300840), (194, 104221580), (206, 98150420), (388, 52110790), (412, 49075210), (485, 41688632), (515, 39260168), (776, 26055395), (824, 24537605), (970, 20844316), (1030, 19630084), (1940, 10422158), (2060, 9815042), (3880, 5211079), (4120, 4907521), (9991, 2023720), (19982, 1011860), (39964, 505930), (49955, 404744), (50593, 399640), (79928, 252965), (99910, 202372), (101186, 199820)]