15861720

素因数分解:

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

素因数の和:865

約数の個数: 128

約数和(自身を含む): 56816640

約数和(自身を除く): 40954920

約数列:

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

約数ペア:

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