28983075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 56335680

約数和(自身を除く): 27352605

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 43, 55, 57, 75, 95, 129, 165, 209, 215, 275, 285, 473, 475, 627, 645, 817, 825, 1045, 1075, 1419, 1425, 1849, 2365, 2451, 3135, 3225, 4085, 5225, 5547, 7095, 8987, 9245, 11825, 12255, 15675, 20339, 20425, 26961, 27735, 35131, 35475, 44935, 46225, 61017, 61275, 101695, 105393, 134805, 138675, 175655, 224675, 305085, 386441, 508475, 526965, 674025, 878275, 1159323, 1525425, 1932205, 2634825, 5796615, 9661025, 28983075]

約数ペア:

[(1, 28983075), (3, 9661025), (5, 5796615), (11, 2634825), (15, 1932205), (19, 1525425), (25, 1159323), (33, 878275), (43, 674025), (55, 526965), (57, 508475), (75, 386441), (95, 305085), (129, 224675), (165, 175655), (209, 138675), (215, 134805), (275, 105393), (285, 101695), (473, 61275), (475, 61017), (627, 46225), (645, 44935), (817, 35475), (825, 35131), (1045, 27735), (1075, 26961), (1419, 20425), (1425, 20339), (1849, 15675), (2365, 12255), (2451, 11825), (3135, 9245), (3225, 8987), (4085, 7095), (5225, 5547)]