28262390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7013}}^1$

素因数の和:7064

約数の個数: 32

約数和(自身を含む): 56560896

約数和(自身を除く): 28298506

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 7013, 14026, 35065, 70130, 91169, 182338, 217403, 434806, 455845, 911690, 1087015, 2174030, 2826239, 5652478, 14131195, 28262390]

約数ペア:

[(1, 28262390), (2, 14131195), (5, 5652478), (10, 2826239), (13, 2174030), (26, 1087015), (31, 911690), (62, 455845), (65, 434806), (130, 217403), (155, 182338), (310, 91169), (403, 70130), (806, 35065), (2015, 14026), (4030, 7013)]