81957120

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{3049}}^1$

素因数の和:3080

約数の個数: 144

約数和(自身を含む): 299241600

約数和(自身を除く): 217284480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3049, 3360, 3840, 4480, 5376, 6098, 6720, 8960, 9147, 12196, 13440, 15245, 18294, 21343, 24392, 26880, 30490, 36588, 42686, 45735, 48784, 60980, 64029, 73176, 85372, 91470, 97568, 106715, 121960, 128058, 146352, 170744, 182940, 195136, 213430, 243920, 256116, 292704, 320145, 341488, 365880, 390272, 426860, 487840, 512232, 585408, 640290, 682976, 731760, 780544, 853720, 975680, 1024464, 1170816, 1280580, 1365952, 1463520, 1707440, 1951360, 2048928, 2341632, 2561160, 2731904, 2927040, 3414880, 3902720, 4097856, 5122320, 5463808, 5854080, 6829760, 8195712, 10244640, 11708160, 13659520, 16391424, 20489280, 27319040, 40978560, 81957120]

約数ペア:

[(1, 81957120), (2, 40978560), (3, 27319040), (4, 20489280), (5, 16391424), (6, 13659520), (7, 11708160), (8, 10244640), (10, 8195712), (12, 6829760), (14, 5854080), (15, 5463808), (16, 5122320), (20, 4097856), (21, 3902720), (24, 3414880), (28, 2927040), (30, 2731904), (32, 2561160), (35, 2341632), (40, 2048928), (42, 1951360), (48, 1707440), (56, 1463520), (60, 1365952), (64, 1280580), (70, 1170816), (80, 1024464), (84, 975680), (96, 853720), (105, 780544), (112, 731760), (120, 682976), (128, 640290), (140, 585408), (160, 512232), (168, 487840), (192, 426860), (210, 390272), (224, 365880), (240, 341488), (256, 320145), (280, 292704), (320, 256116), (336, 243920), (384, 213430), (420, 195136), (448, 182940), (480, 170744), (560, 146352), (640, 128058), (672, 121960), (768, 106715), (840, 97568), (896, 91470), (960, 85372), (1120, 73176), (1280, 64029), (1344, 60980), (1680, 48784), (1792, 45735), (1920, 42686), (2240, 36588), (2688, 30490), (3049, 26880), (3360, 24392), (3840, 21343), (4480, 18294), (5376, 15245), (6098, 13440), (6720, 12196), (8960, 9147)]