81245730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 202752000

約数和(自身を除く): 121506270

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 199, 310, 398, 439, 465, 597, 878, 930, 995, 1194, 1317, 1990, 2195, 2634, 2985, 4390, 5970, 6169, 6585, 12338, 13170, 13609, 18507, 27218, 30845, 37014, 40827, 61690, 68045, 81654, 87361, 92535, 136090, 174722, 185070, 204135, 262083, 408270, 436805, 524166, 873610, 1310415, 2620830, 2708191, 5416382, 8124573, 13540955, 16249146, 27081910, 40622865, 81245730]

約数ペア:

[(1, 81245730), (2, 40622865), (3, 27081910), (5, 16249146), (6, 13540955), (10, 8124573), (15, 5416382), (30, 2708191), (31, 2620830), (62, 1310415), (93, 873610), (155, 524166), (186, 436805), (199, 408270), (310, 262083), (398, 204135), (439, 185070), (465, 174722), (597, 136090), (878, 92535), (930, 87361), (995, 81654), (1194, 68045), (1317, 61690), (1990, 40827), (2195, 37014), (2634, 30845), (2985, 27218), (4390, 18507), (5970, 13609), (6169, 13170), (6585, 12338)]