81172984

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{173}}^1\times {\mathrm{659}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 155034000

約数和(自身を除く): 73861016

約数列:

[1, 2, 4, 8, 89, 173, 178, 346, 356, 659, 692, 712, 1318, 1384, 2636, 5272, 15397, 30794, 58651, 61588, 114007, 117302, 123176, 228014, 234604, 456028, 469208, 912056, 10146623, 20293246, 40586492, 81172984]

約数ペア:

[(1, 81172984), (2, 40586492), (4, 20293246), (8, 10146623), (89, 912056), (173, 469208), (178, 456028), (346, 234604), (356, 228014), (659, 123176), (692, 117302), (712, 114007), (1318, 61588), (1384, 58651), (2636, 30794), (5272, 15397)]