15742740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20183}}^1$

素因数の和:20208

約数の個数: 48

約数和(自身を含む): 47472768

約数和(自身を除く): 31730028

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, 20183, 40366, 60549, 80732, 100915, 121098, 201830, 242196, 262379, 302745, 403660, 524758, 605490, 787137, 1049516, 1210980, 1311895, 1574274, 2623790, 3148548, 3935685, 5247580, 7871370, 15742740]

約数ペア:

[(1, 15742740), (2, 7871370), (3, 5247580), (4, 3935685), (5, 3148548), (6, 2623790), (10, 1574274), (12, 1311895), (13, 1210980), (15, 1049516), (20, 787137), (26, 605490), (30, 524758), (39, 403660), (52, 302745), (60, 262379), (65, 242196), (78, 201830), (130, 121098), (156, 100915), (195, 80732), (260, 60549), (390, 40366), (780, 20183)]