131438295

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:115

約数の個数: 120

約数和(自身を含む): 265541760

約数和(自身を除く): 134103465

約数列:

[1, 3, 5, 9, 15, 19, 27, 29, 31, 45, 57, 81, 87, 93, 95, 135, 145, 155, 171, 261, 279, 285, 361, 405, 435, 465, 513, 551, 589, 783, 837, 855, 899, 1083, 1305, 1395, 1539, 1653, 1767, 1805, 2349, 2511, 2565, 2697, 2755, 2945, 3249, 3915, 4185, 4495, 4959, 5301, 5415, 7695, 8091, 8265, 8835, 9747, 10469, 11191, 11745, 12555, 13485, 14877, 15903, 16245, 17081, 24273, 24795, 26505, 29241, 31407, 33573, 40455, 44631, 47709, 48735, 51243, 52345, 55955, 72819, 74385, 79515, 85405, 94221, 100719, 121365, 146205, 153729, 157035, 167865, 223155, 238545, 256215, 282663, 302157, 324539, 364095, 461187, 471105, 503595, 768645, 847989, 906471, 973617, 1383561, 1413315, 1510785, 1622695, 2305935, 2920851, 4239945, 4532355, 4868085, 6917805, 8762553, 14604255, 26287659, 43812765, 131438295]

約数ペア:

[(1, 131438295), (3, 43812765), (5, 26287659), (9, 14604255), (15, 8762553), (19, 6917805), (27, 4868085), (29, 4532355), (31, 4239945), (45, 2920851), (57, 2305935), (81, 1622695), (87, 1510785), (93, 1413315), (95, 1383561), (135, 973617), (145, 906471), (155, 847989), (171, 768645), (261, 503595), (279, 471105), (285, 461187), (361, 364095), (405, 324539), (435, 302157), (465, 282663), (513, 256215), (551, 238545), (589, 223155), (783, 167865), (837, 157035), (855, 153729), (899, 146205), (1083, 121365), (1305, 100719), (1395, 94221), (1539, 85405), (1653, 79515), (1767, 74385), (1805, 72819), (2349, 55955), (2511, 52345), (2565, 51243), (2697, 48735), (2755, 47709), (2945, 44631), (3249, 40455), (3915, 33573), (4185, 31407), (4495, 29241), (4959, 26505), (5301, 24795), (5415, 24273), (7695, 17081), (8091, 16245), (8265, 15903), (8835, 14877), (9747, 13485), (10469, 12555), (11191, 11745)]