173655640

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{16139}}^1$

素因数の和:16419

約数の個数: 32

約数和(自身を含む): 392202000

約数和(自身を除く): 218546360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 5380, 10760, 16139, 32278, 64556, 80695, 129112, 161390, 322780, 645560, 4341391, 8682782, 17365564, 21706955, 34731128, 43413910, 86827820, 173655640]

約数ペア:

[(1, 173655640), (2, 86827820), (4, 43413910), (5, 34731128), (8, 21706955), (10, 17365564), (20, 8682782), (40, 4341391), (269, 645560), (538, 322780), (1076, 161390), (1345, 129112), (2152, 80695), (2690, 64556), (5380, 32278), (10760, 16139)]