19801265055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1249}}^1$

素因数の和:1689

約数の個数: 128

約数和(自身を含む): 39312000000

約数和(自身を除く): 19510734945

約数列:

[1, 3, 5, 11, 13, 15, 19, 33, 39, 55, 57, 65, 95, 143, 165, 195, 209, 247, 285, 389, 429, 627, 715, 741, 1045, 1167, 1235, 1249, 1945, 2145, 2717, 3135, 3705, 3747, 4279, 5057, 5835, 6245, 7391, 8151, 12837, 13585, 13739, 15171, 16237, 18735, 21395, 22173, 23731, 25285, 36955, 40755, 41217, 48711, 55627, 64185, 68695, 71193, 75855, 81185, 81301, 96083, 110865, 118655, 166881, 178607, 206085, 243555, 243903, 261041, 278135, 288249, 308503, 355965, 406505, 480415, 485861, 535821, 783123, 834405, 893035, 925509, 1056913, 1219515, 1305205, 1441245, 1457583, 1542515, 2429305, 2679105, 3170739, 3393533, 3915615, 4627545, 5284565, 5344471, 6316193, 7287915, 9231359, 10180599, 15853695, 16033413, 16967665, 18948579, 26722355, 27694077, 31580965, 46156795, 50902995, 69478123, 80167065, 94742895, 101544949, 120007667, 138470385, 208434369, 304634847, 347390615, 360023001, 507724745, 600038335, 1042171845, 1320084337, 1523174235, 1800115005, 3960253011, 6600421685, 19801265055]

約数ペア:

[(1, 19801265055), (3, 6600421685), (5, 3960253011), (11, 1800115005), (13, 1523174235), (15, 1320084337), (19, 1042171845), (33, 600038335), (39, 507724745), (55, 360023001), (57, 347390615), (65, 304634847), (95, 208434369), (143, 138470385), (165, 120007667), (195, 101544949), (209, 94742895), (247, 80167065), (285, 69478123), (389, 50902995), (429, 46156795), (627, 31580965), (715, 27694077), (741, 26722355), (1045, 18948579), (1167, 16967665), (1235, 16033413), (1249, 15853695), (1945, 10180599), (2145, 9231359), (2717, 7287915), (3135, 6316193), (3705, 5344471), (3747, 5284565), (4279, 4627545), (5057, 3915615), (5835, 3393533), (6245, 3170739), (7391, 2679105), (8151, 2429305), (12837, 1542515), (13585, 1457583), (13739, 1441245), (15171, 1305205), (16237, 1219515), (18735, 1056913), (21395, 925509), (22173, 893035), (23731, 834405), (25285, 783123), (36955, 535821), (40755, 485861), (41217, 480415), (48711, 406505), (55627, 355965), (64185, 308503), (68695, 288249), (71193, 278135), (75855, 261041), (81185, 243903), (81301, 243555), (96083, 206085), (110865, 178607), (118655, 166881)]