161651320

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 370915200

約数和(自身を除く): 209263880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 179, 211, 214, 358, 422, 428, 535, 716, 844, 856, 895, 1055, 1070, 1432, 1688, 1790, 2110, 2140, 3580, 4220, 4280, 7160, 8440, 19153, 22577, 37769, 38306, 45154, 75538, 76612, 90308, 95765, 112885, 151076, 153224, 180616, 188845, 191530, 225770, 302152, 377690, 383060, 451540, 755380, 766120, 903080, 1510760, 4041283, 8082566, 16165132, 20206415, 32330264, 40412830, 80825660, 161651320]

約数ペア:

[(1, 161651320), (2, 80825660), (4, 40412830), (5, 32330264), (8, 20206415), (10, 16165132), (20, 8082566), (40, 4041283), (107, 1510760), (179, 903080), (211, 766120), (214, 755380), (358, 451540), (422, 383060), (428, 377690), (535, 302152), (716, 225770), (844, 191530), (856, 188845), (895, 180616), (1055, 153224), (1070, 151076), (1432, 112885), (1688, 95765), (1790, 90308), (2110, 76612), (2140, 75538), (3580, 45154), (4220, 38306), (4280, 37769), (7160, 22577), (8440, 19153)]