19781430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4813}}^1$

素因数の和:4960

約数の個数: 32

約数和(自身を含む): 47831904

約数和(自身を除く): 28050474

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 137, 274, 411, 685, 822, 1370, 2055, 4110, 4813, 9626, 14439, 24065, 28878, 48130, 72195, 144390, 659381, 1318762, 1978143, 3296905, 3956286, 6593810, 9890715, 19781430]

約数ペア:

[(1, 19781430), (2, 9890715), (3, 6593810), (5, 3956286), (6, 3296905), (10, 1978143), (15, 1318762), (30, 659381), (137, 144390), (274, 72195), (411, 48130), (685, 28878), (822, 24065), (1370, 14439), (2055, 9626), (4110, 4813)]