42640360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{152287}}^1$

素因数の和:152305

約数の個数: 32

約数和(自身を含む): 109647360

約数和(自身を除く): 67007000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 152287, 304574, 609148, 761435, 1066009, 1218296, 1522870, 2132018, 3045740, 4264036, 5330045, 6091480, 8528072, 10660090, 21320180, 42640360]

約数ペア:

[(1, 42640360), (2, 21320180), (4, 10660090), (5, 8528072), (7, 6091480), (8, 5330045), (10, 4264036), (14, 3045740), (20, 2132018), (28, 1522870), (35, 1218296), (40, 1066009), (56, 761435), (70, 609148), (140, 304574), (280, 152287)]