20700940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{773}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 47331648

約数和(自身を除く): 26630708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 773, 1030, 1339, 1546, 2060, 2678, 3092, 3865, 5356, 6695, 7730, 10049, 13390, 15460, 20098, 26780, 40196, 50245, 79619, 100490, 159238, 200980, 318476, 398095, 796190, 1035047, 1592380, 2070094, 4140188, 5175235, 10350470, 20700940]

約数ペア:

[(1, 20700940), (2, 10350470), (4, 5175235), (5, 4140188), (10, 2070094), (13, 1592380), (20, 1035047), (26, 796190), (52, 398095), (65, 318476), (103, 200980), (130, 159238), (206, 100490), (260, 79619), (412, 50245), (515, 40196), (773, 26780), (1030, 20098), (1339, 15460), (1546, 13390), (2060, 10049), (2678, 7730), (3092, 6695), (3865, 5356)]