31723440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:867

約数の個数: 160

約数和(自身を含む): 117421056

約数和(自身を除く): 85697616

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 552, 560, 644, 690, 805, 821, 840, 920, 966, 1104, 1288, 1380, 1610, 1642, 1680, 1840, 1932, 2415, 2463, 2576, 2760, 3220, 3284, 3864, 4105, 4830, 4926, 5520, 5747, 6440, 6568, 7728, 8210, 9660, 9852, 11494, 12315, 12880, 13136, 16420, 17241, 18883, 19320, 19704, 22988, 24630, 28735, 32840, 34482, 37766, 38640, 39408, 45976, 49260, 56649, 57470, 65680, 68964, 75532, 86205, 91952, 94415, 98520, 113298, 114940, 132181, 137928, 151064, 172410, 188830, 197040, 226596, 229880, 264362, 275856, 283245, 302128, 344820, 377660, 396543, 453192, 459760, 528724, 566490, 660905, 689640, 755320, 793086, 906384, 1057448, 1132980, 1321810, 1379280, 1510640, 1586172, 1982715, 2114896, 2265960, 2643620, 3172344, 3965430, 4531920, 5287240, 6344688, 7930860, 10574480, 15861720, 31723440]

約数ペア:

[(1, 31723440), (2, 15861720), (3, 10574480), (4, 7930860), (5, 6344688), (6, 5287240), (7, 4531920), (8, 3965430), (10, 3172344), (12, 2643620), (14, 2265960), (15, 2114896), (16, 1982715), (20, 1586172), (21, 1510640), (23, 1379280), (24, 1321810), (28, 1132980), (30, 1057448), (35, 906384), (40, 793086), (42, 755320), (46, 689640), (48, 660905), (56, 566490), (60, 528724), (69, 459760), (70, 453192), (80, 396543), (84, 377660), (92, 344820), (105, 302128), (112, 283245), (115, 275856), (120, 264362), (138, 229880), (140, 226596), (161, 197040), (168, 188830), (184, 172410), (210, 151064), (230, 137928), (240, 132181), (276, 114940), (280, 113298), (322, 98520), (336, 94415), (345, 91952), (368, 86205), (420, 75532), (460, 68964), (483, 65680), (552, 57470), (560, 56649), (644, 49260), (690, 45976), (805, 39408), (821, 38640), (840, 37766), (920, 34482), (966, 32840), (1104, 28735), (1288, 24630), (1380, 22988), (1610, 19704), (1642, 19320), (1680, 18883), (1840, 17241), (1932, 16420), (2415, 13136), (2463, 12880), (2576, 12315), (2760, 11494), (3220, 9852), (3284, 9660), (3864, 8210), (4105, 7728), (4830, 6568), (4926, 6440), (5520, 5747)]