19388540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{373}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 23588548

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 113, 115, 226, 230, 373, 452, 460, 565, 746, 1130, 1492, 1865, 2260, 2599, 3730, 5198, 7460, 8579, 10396, 12995, 17158, 25990, 34316, 42149, 42895, 51980, 84298, 85790, 168596, 171580, 210745, 421490, 842980, 969427, 1938854, 3877708, 4847135, 9694270, 19388540]

約数ペア:

[(1, 19388540), (2, 9694270), (4, 4847135), (5, 3877708), (10, 1938854), (20, 969427), (23, 842980), (46, 421490), (92, 210745), (113, 171580), (115, 168596), (226, 85790), (230, 84298), (373, 51980), (452, 42895), (460, 42149), (565, 34316), (746, 25990), (1130, 17158), (1492, 12995), (1865, 10396), (2260, 8579), (2599, 7460), (3730, 5198)]