28216665

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 23001255

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 113, 155, 179, 279, 339, 465, 537, 565, 895, 1017, 1395, 1611, 1695, 2685, 3503, 5085, 5549, 8055, 10509, 16647, 17515, 20227, 27745, 31527, 49941, 52545, 60681, 83235, 101135, 157635, 182043, 249705, 303405, 627037, 910215, 1881111, 3135185, 5643333, 9405555, 28216665]

約数ペア:

[(1, 28216665), (3, 9405555), (5, 5643333), (9, 3135185), (15, 1881111), (31, 910215), (45, 627037), (93, 303405), (113, 249705), (155, 182043), (179, 157635), (279, 101135), (339, 83235), (465, 60681), (537, 52545), (565, 49941), (895, 31527), (1017, 27745), (1395, 20227), (1611, 17515), (1695, 16647), (2685, 10509), (3503, 8055), (5085, 5549)]