20294128

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{277}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 41711120

約数和(自身を除く): 21416992

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 241, 277, 304, 482, 554, 964, 1108, 1928, 2216, 3856, 4432, 4579, 5263, 9158, 10526, 18316, 21052, 36632, 42104, 66757, 73264, 84208, 133514, 267028, 534056, 1068112, 1268383, 2536766, 5073532, 10147064, 20294128]

約数ペア:

[(1, 20294128), (2, 10147064), (4, 5073532), (8, 2536766), (16, 1268383), (19, 1068112), (38, 534056), (76, 267028), (152, 133514), (241, 84208), (277, 73264), (304, 66757), (482, 42104), (554, 36632), (964, 21052), (1108, 18316), (1928, 10526), (2216, 9158), (3856, 5263), (4432, 4579)]