4889320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3943}}^1$

素因数の和:3985

約数の個数: 32

約数和(自身を含む): 11358720

約数和(自身を除く): 6469400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 3943, 7886, 15772, 19715, 31544, 39430, 78860, 122233, 157720, 244466, 488932, 611165, 977864, 1222330, 2444660, 4889320]

約数ペア:

[(1, 4889320), (2, 2444660), (4, 1222330), (5, 977864), (8, 611165), (10, 488932), (20, 244466), (31, 157720), (40, 122233), (62, 78860), (124, 39430), (155, 31544), (248, 19715), (310, 15772), (620, 7886), (1240, 3943)]