2644980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3391}}^1$

素因数の和:3416

約数の個数: 48

約数和(自身を含む): 7977984

約数和(自身を除く): 5333004

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, 3391, 6782, 10173, 13564, 16955, 20346, 33910, 40692, 44083, 50865, 67820, 88166, 101730, 132249, 176332, 203460, 220415, 264498, 440830, 528996, 661245, 881660, 1322490, 2644980]

約数ペア:

[(1, 2644980), (2, 1322490), (3, 881660), (4, 661245), (5, 528996), (6, 440830), (10, 264498), (12, 220415), (13, 203460), (15, 176332), (20, 132249), (26, 101730), (30, 88166), (39, 67820), (52, 50865), (60, 44083), (65, 40692), (78, 33910), (130, 20346), (156, 16955), (195, 13564), (260, 10173), (390, 6782), (780, 3391)]