199986540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256393}}^1$

素因数の和:256418

約数の個数: 48

約数和(自身を含む): 603038688

約数和(自身を除く): 403052148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 256393, 512786, 769179, 1025572, 1281965, 1538358, 2563930, 3076716, 3333109, 3845895, 5127860, 6666218, 7691790, 9999327, 13332436, 15383580, 16665545, 19998654, 33331090, 39997308, 49996635, 66662180, 99993270, 199986540]

約数ペア:

[(1, 199986540), (2, 99993270), (3, 66662180), (4, 49996635), (5, 39997308), (6, 33331090), (10, 19998654), (12, 16665545), (13, 15383580), (15, 13332436), (20, 9999327), (26, 7691790), (30, 6666218), (39, 5127860), (52, 3845895), (60, 3333109), (65, 3076716), (78, 2563930), (130, 1538358), (156, 1281965), (195, 1025572), (260, 769179), (390, 512786), (780, 256393)]