2789080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1423}}^1$

素因数の和:1448

約数の個数: 48

約数和(自身を含む): 7305120

約数和(自身を除く): 4516040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1423, 1960, 2846, 5692, 7115, 9961, 11384, 14230, 19922, 28460, 39844, 49805, 56920, 69727, 79688, 99610, 139454, 199220, 278908, 348635, 398440, 557816, 697270, 1394540, 2789080]

約数ペア:

[(1, 2789080), (2, 1394540), (4, 697270), (5, 557816), (7, 398440), (8, 348635), (10, 278908), (14, 199220), (20, 139454), (28, 99610), (35, 79688), (40, 69727), (49, 56920), (56, 49805), (70, 39844), (98, 28460), (140, 19922), (196, 14230), (245, 11384), (280, 9961), (392, 7115), (490, 5692), (980, 2846), (1423, 1960)]