19887270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{50993}}^1$

素因数の和:51016

約数の個数: 32

約数和(自身を含む): 51401952

約数和(自身を除く): 31514682

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 50993, 101986, 152979, 254965, 305958, 509930, 662909, 764895, 1325818, 1529790, 1988727, 3314545, 3977454, 6629090, 9943635, 19887270]

約数ペア:

[(1, 19887270), (2, 9943635), (3, 6629090), (5, 3977454), (6, 3314545), (10, 1988727), (13, 1529790), (15, 1325818), (26, 764895), (30, 662909), (39, 509930), (65, 305958), (78, 254965), (130, 152979), (195, 101986), (390, 50993)]