20163840040

素因数分解:

$2^3\times 5^1\times {\mathrm{9199}}^1\times {\mathrm{54799}}^1$

素因数の和:64009

約数の個数: 32

約数和(自身を含む): 45374400000

約数和(自身を除く): 25210559960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9199, 18398, 36796, 45995, 54799, 73592, 91990, 109598, 183980, 219196, 273995, 367960, 438392, 547990, 1095980, 2191960, 504096001, 1008192002, 2016384004, 2520480005, 4032768008, 5040960010, 10081920020, 20163840040]

約数ペア:

[(1, 20163840040), (2, 10081920020), (4, 5040960010), (5, 4032768008), (8, 2520480005), (10, 2016384004), (20, 1008192002), (40, 504096001), (9199, 2191960), (18398, 1095980), (36796, 547990), (45995, 438392), (54799, 367960), (73592, 273995), (91990, 219196), (109598, 183980)]