647928148

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{823}}^1\times {\mathrm{907}}^1$

素因数の和:1772

約数の個数: 48

約数和(自身を含む): 1340760064

約数和(自身を除く): 692831916

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 823, 868, 907, 1646, 1814, 3292, 3628, 5761, 6349, 11522, 12698, 23044, 25396, 25513, 28117, 51026, 56234, 102052, 112468, 178591, 196819, 357182, 393638, 714364, 746461, 787276, 1492922, 2985844, 5225227, 10450454, 20900908, 23140291, 46280582, 92561164, 161982037, 323964074, 647928148]

約数ペア:

[(1, 647928148), (2, 323964074), (4, 161982037), (7, 92561164), (14, 46280582), (28, 23140291), (31, 20900908), (62, 10450454), (124, 5225227), (217, 2985844), (434, 1492922), (823, 787276), (868, 746461), (907, 714364), (1646, 393638), (1814, 357182), (3292, 196819), (3628, 178591), (5761, 112468), (6349, 102052), (11522, 56234), (12698, 51026), (23044, 28117), (25396, 25513)]