30356840

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2953}}^1$

素因数の和:3221

約数の個数: 32

約数和(自身を含む): 68591880

約数和(自身を除く): 38235040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 2953, 5140, 5906, 10280, 11812, 14765, 23624, 29530, 59060, 118120, 758921, 1517842, 3035684, 3794605, 6071368, 7589210, 15178420, 30356840]

約数ペア:

[(1, 30356840), (2, 15178420), (4, 7589210), (5, 6071368), (8, 3794605), (10, 3035684), (20, 1517842), (40, 758921), (257, 118120), (514, 59060), (1028, 29530), (1285, 23624), (2056, 14765), (2570, 11812), (2953, 10280), (5140, 5906)]