28495915

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{587}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 41771520

約数和(自身を除く): 13275605

約数列:

[1, 5, 7, 19, 35, 73, 95, 133, 365, 511, 587, 665, 1387, 2555, 2935, 4109, 6935, 9709, 11153, 20545, 42851, 48545, 55765, 78071, 214255, 299957, 390355, 814169, 1499785, 4070845, 5699183, 28495915]

約数ペア:

[(1, 28495915), (5, 5699183), (7, 4070845), (19, 1499785), (35, 814169), (73, 390355), (95, 299957), (133, 214255), (365, 78071), (511, 55765), (587, 48545), (665, 42851), (1387, 20545), (2555, 11153), (2935, 9709), (4109, 6935)]