28708715

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1877}}^1$

素因数の和:1931

約数の個数: 32

約数和(自身を含む): 43269120

約数和(自身を除く): 14560405

約数列:

[1, 5, 7, 19, 23, 35, 95, 115, 133, 161, 437, 665, 805, 1877, 2185, 3059, 9385, 13139, 15295, 35663, 43171, 65695, 178315, 215855, 249641, 302197, 820249, 1248205, 1510985, 4101245, 5741743, 28708715]

約数ペア:

[(1, 28708715), (5, 5741743), (7, 4101245), (19, 1510985), (23, 1248205), (35, 820249), (95, 302197), (115, 249641), (133, 215855), (161, 178315), (437, 65695), (665, 43171), (805, 35663), (1877, 15295), (2185, 13139), (3059, 9385)]