20331350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1065

約数の個数: 48

約数和(自身を含む): 42080640

約数和(自身を除く): 21749290

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1009, 1550, 2015, 2018, 4030, 5045, 10075, 10090, 13117, 20150, 25225, 26234, 31279, 50450, 62558, 65585, 131170, 156395, 312790, 327925, 406627, 655850, 781975, 813254, 1563950, 2033135, 4066270, 10165675, 20331350]

約数ペア:

[(1, 20331350), (2, 10165675), (5, 4066270), (10, 2033135), (13, 1563950), (25, 813254), (26, 781975), (31, 655850), (50, 406627), (62, 327925), (65, 312790), (130, 156395), (155, 131170), (310, 65585), (325, 62558), (403, 50450), (650, 31279), (775, 26234), (806, 25225), (1009, 20150), (1550, 13117), (2015, 10090), (2018, 10075), (4030, 5045)]