19311920

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{853}}^1$

素因数の和:1149

約数の個数: 40

約数和(自身を含む): 45111696

約数和(自身を除く): 25799776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 853, 1132, 1415, 1706, 2264, 2830, 3412, 4265, 4528, 5660, 6824, 8530, 11320, 13648, 17060, 22640, 34120, 68240, 241399, 482798, 965596, 1206995, 1931192, 2413990, 3862384, 4827980, 9655960, 19311920]

約数ペア:

[(1, 19311920), (2, 9655960), (4, 4827980), (5, 3862384), (8, 2413990), (10, 1931192), (16, 1206995), (20, 965596), (40, 482798), (80, 241399), (283, 68240), (566, 34120), (853, 22640), (1132, 17060), (1415, 13648), (1706, 11320), (2264, 8530), (2830, 6824), (3412, 5660), (4265, 4528)]