28181475

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{617}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 59772960

約数和(自身を除く): 31591485

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 63, 75, 87, 105, 145, 175, 203, 225, 261, 315, 435, 525, 609, 617, 725, 1015, 1305, 1575, 1827, 1851, 2175, 3045, 3085, 4319, 5075, 5553, 6525, 9135, 9255, 12957, 15225, 15425, 17893, 21595, 27765, 38871, 45675, 46275, 53679, 64785, 89465, 107975, 125251, 138825, 161037, 194355, 268395, 323925, 375753, 447325, 626255, 805185, 971775, 1127259, 1341975, 1878765, 3131275, 4025925, 5636295, 9393825, 28181475]

約数ペア:

[(1, 28181475), (3, 9393825), (5, 5636295), (7, 4025925), (9, 3131275), (15, 1878765), (21, 1341975), (25, 1127259), (29, 971775), (35, 805185), (45, 626255), (63, 447325), (75, 375753), (87, 323925), (105, 268395), (145, 194355), (175, 161037), (203, 138825), (225, 125251), (261, 107975), (315, 89465), (435, 64785), (525, 53679), (609, 46275), (617, 45675), (725, 38871), (1015, 27765), (1305, 21595), (1575, 17893), (1827, 15425), (1851, 15225), (2175, 12957), (3045, 9255), (3085, 9135), (4319, 6525), (5075, 5553)]