81616600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31391}}^1$

素因数の和:31420

約数の個数: 48

約数和(自身を含む): 204361920

約数和(自身を除く): 122745320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 31391, 62782, 125564, 156955, 251128, 313910, 408083, 627820, 784775, 816166, 1255640, 1569550, 1632332, 2040415, 3139100, 3264664, 4080830, 6278200, 8161660, 10202075, 16323320, 20404150, 40808300, 81616600]

約数ペア:

[(1, 81616600), (2, 40808300), (4, 20404150), (5, 16323320), (8, 10202075), (10, 8161660), (13, 6278200), (20, 4080830), (25, 3264664), (26, 3139100), (40, 2040415), (50, 1632332), (52, 1569550), (65, 1255640), (100, 816166), (104, 784775), (130, 627820), (200, 408083), (260, 313910), (325, 251128), (520, 156955), (650, 125564), (1300, 62782), (2600, 31391)]