215565165

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2711}}^1$

素因数の和:2775

約数の個数: 64

約数和(自身を含む): 416563200

約数和(自身を除く): 200998035

約数列:

[1, 3, 5, 9, 15, 19, 27, 31, 45, 57, 93, 95, 135, 155, 171, 279, 285, 465, 513, 589, 837, 855, 1395, 1767, 2565, 2711, 2945, 4185, 5301, 8133, 8835, 13555, 15903, 24399, 26505, 40665, 51509, 73197, 79515, 84041, 121995, 154527, 252123, 257545, 365985, 420205, 463581, 756369, 772635, 1260615, 1390743, 1596779, 2269107, 2317905, 3781845, 4790337, 6953715, 7983895, 11345535, 14371011, 23951685, 43113033, 71855055, 215565165]

約数ペア:

[(1, 215565165), (3, 71855055), (5, 43113033), (9, 23951685), (15, 14371011), (19, 11345535), (27, 7983895), (31, 6953715), (45, 4790337), (57, 3781845), (93, 2317905), (95, 2269107), (135, 1596779), (155, 1390743), (171, 1260615), (279, 772635), (285, 756369), (465, 463581), (513, 420205), (589, 365985), (837, 257545), (855, 252123), (1395, 154527), (1767, 121995), (2565, 84041), (2711, 79515), (2945, 73197), (4185, 51509), (5301, 40665), (8133, 26505), (8835, 24399), (13555, 15903)]