128516390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{5839}}^1$

素因数の和:5948

約数の個数: 32

約数和(自身を含む): 242196480

約数和(自身を除く): 113680090

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 2201, 4402, 5839, 11005, 11678, 22010, 29195, 58390, 181009, 362018, 414569, 829138, 905045, 1810090, 2072845, 4145690, 12851639, 25703278, 64258195, 128516390]

約数ペア:

[(1, 128516390), (2, 64258195), (5, 25703278), (10, 12851639), (31, 4145690), (62, 2072845), (71, 1810090), (142, 905045), (155, 829138), (310, 414569), (355, 362018), (710, 181009), (2201, 58390), (4402, 29195), (5839, 22010), (11005, 11678)]