31376280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20113}}^1$

素因数の和:20140

約数の個数: 64

約数和(自身を含む): 101374560

約数和(自身を除く): 69998280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20113, 40226, 60339, 80452, 100565, 120678, 160904, 201130, 241356, 261469, 301695, 402260, 482712, 522938, 603390, 784407, 804520, 1045876, 1206780, 1307345, 1568814, 2091752, 2413560, 2614690, 3137628, 3922035, 5229380, 6275256, 7844070, 10458760, 15688140, 31376280]

約数ペア:

[(1, 31376280), (2, 15688140), (3, 10458760), (4, 7844070), (5, 6275256), (6, 5229380), (8, 3922035), (10, 3137628), (12, 2614690), (13, 2413560), (15, 2091752), (20, 1568814), (24, 1307345), (26, 1206780), (30, 1045876), (39, 804520), (40, 784407), (52, 603390), (60, 522938), (65, 482712), (78, 402260), (104, 301695), (120, 261469), (130, 241356), (156, 201130), (195, 160904), (260, 120678), (312, 100565), (390, 80452), (520, 60339), (780, 40226), (1560, 20113)]