2010221320

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{76961}}^1$

素因数の和:77625

約数の個数: 32

約数和(自身を含む): 4529983320

約数和(自身を除く): 2519762000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 5224, 6530, 13060, 26120, 76961, 153922, 307844, 384805, 615688, 769610, 1539220, 3078440, 50255533, 100511066, 201022132, 251277665, 402044264, 502555330, 1005110660, 2010221320]

約数ペア:

[(1, 2010221320), (2, 1005110660), (4, 502555330), (5, 402044264), (8, 251277665), (10, 201022132), (20, 100511066), (40, 50255533), (653, 3078440), (1306, 1539220), (2612, 769610), (3265, 615688), (5224, 384805), (6530, 307844), (13060, 153922), (26120, 76961)]