20043810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 72

約数和(自身を含む): 54607644

約数和(自身を除く): 34563834

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 421, 529, 690, 842, 1035, 1058, 1263, 1587, 2070, 2105, 2526, 2645, 3174, 3789, 4210, 4761, 5290, 6315, 7578, 7935, 9522, 9683, 12630, 15870, 18945, 19366, 23805, 29049, 37890, 47610, 48415, 58098, 87147, 96830, 145245, 174294, 222709, 290490, 435735, 445418, 668127, 871470, 1113545, 1336254, 2004381, 2227090, 3340635, 4008762, 6681270, 10021905, 20043810]

約数ペア:

[(1, 20043810), (2, 10021905), (3, 6681270), (5, 4008762), (6, 3340635), (9, 2227090), (10, 2004381), (15, 1336254), (18, 1113545), (23, 871470), (30, 668127), (45, 445418), (46, 435735), (69, 290490), (90, 222709), (115, 174294), (138, 145245), (207, 96830), (230, 87147), (345, 58098), (414, 48415), (421, 47610), (529, 37890), (690, 29049), (842, 23805), (1035, 19366), (1058, 18945), (1263, 15870), (1587, 12630), (2070, 9683), (2105, 9522), (2526, 7935), (2645, 7578), (3174, 6315), (3789, 5290), (4210, 4761)]