19203860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{317}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 43754256

約数和(自身を除く): 24550396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 233, 260, 317, 466, 634, 932, 1165, 1268, 1585, 2330, 3029, 3170, 4121, 4660, 6058, 6340, 8242, 12116, 15145, 16484, 20605, 30290, 41210, 60580, 73861, 82420, 147722, 295444, 369305, 738610, 960193, 1477220, 1920386, 3840772, 4800965, 9601930, 19203860]

約数ペア:

[(1, 19203860), (2, 9601930), (4, 4800965), (5, 3840772), (10, 1920386), (13, 1477220), (20, 960193), (26, 738610), (52, 369305), (65, 295444), (130, 147722), (233, 82420), (260, 73861), (317, 60580), (466, 41210), (634, 30290), (932, 20605), (1165, 16484), (1268, 15145), (1585, 12116), (2330, 8242), (3029, 6340), (3170, 6058), (4121, 4660)]