28688175

素因数分解:

$3^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:510

約数の個数: 60

約数和(自身を含む): 54974656

約数和(自身を除く): 26286481

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 81, 93, 135, 155, 225, 279, 405, 457, 465, 675, 775, 837, 1371, 1395, 2025, 2285, 2325, 2511, 4113, 4185, 6855, 6975, 11425, 12339, 12555, 14167, 20565, 20925, 34275, 37017, 42501, 61695, 62775, 70835, 102825, 127503, 185085, 212505, 308475, 354175, 382509, 637515, 925425, 1062525, 1147527, 1912545, 3187575, 5737635, 9562725, 28688175]

約数ペア:

[(1, 28688175), (3, 9562725), (5, 5737635), (9, 3187575), (15, 1912545), (25, 1147527), (27, 1062525), (31, 925425), (45, 637515), (75, 382509), (81, 354175), (93, 308475), (135, 212505), (155, 185085), (225, 127503), (279, 102825), (405, 70835), (457, 62775), (465, 61695), (675, 42501), (775, 37017), (837, 34275), (1371, 20925), (1395, 20565), (2025, 14167), (2285, 12555), (2325, 12339), (2511, 11425), (4113, 6975), (4185, 6855)]