90079120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15859}}^1$

素因数の和:15943

約数の個数: 40

約数和(自身を含む): 212397120

約数和(自身を除く): 122318000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 15859, 31718, 63436, 79295, 126872, 158590, 253744, 317180, 634360, 1125989, 1268720, 2251978, 4503956, 5629945, 9007912, 11259890, 18015824, 22519780, 45039560, 90079120]

約数ペア:

[(1, 90079120), (2, 45039560), (4, 22519780), (5, 18015824), (8, 11259890), (10, 9007912), (16, 5629945), (20, 4503956), (40, 2251978), (71, 1268720), (80, 1125989), (142, 634360), (284, 317180), (355, 253744), (568, 158590), (710, 126872), (1136, 79295), (1420, 63436), (2840, 31718), (5680, 15859)]