18953090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4703}}^1$

素因数の和:4754

約数の個数: 32

約数和(自身を含む): 37933056

約数和(自身を除く): 18979966

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4703, 9406, 23515, 47030, 61139, 122278, 145793, 291586, 305695, 611390, 728965, 1457930, 1895309, 3790618, 9476545, 18953090]

約数ペア:

[(1, 18953090), (2, 9476545), (5, 3790618), (10, 1895309), (13, 1457930), (26, 728965), (31, 611390), (62, 305695), (65, 291586), (130, 145793), (155, 122278), (310, 61139), (403, 47030), (806, 23515), (2015, 9406), (4030, 4703)]