42720000

素因数分解:

$2^8\times 3^1\times 5^4\times {\mathrm{89}}^1$

素因数の和:128

約数の個数: 180

約数和(自身を含む): 143672760

約数和(自身を除く): 100952760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 89, 96, 100, 120, 125, 128, 150, 160, 178, 192, 200, 240, 250, 256, 267, 300, 320, 356, 375, 384, 400, 445, 480, 500, 534, 600, 625, 640, 712, 750, 768, 800, 890, 960, 1000, 1068, 1200, 1250, 1280, 1335, 1424, 1500, 1600, 1780, 1875, 1920, 2000, 2136, 2225, 2400, 2500, 2670, 2848, 3000, 3200, 3560, 3750, 3840, 4000, 4272, 4450, 4800, 5000, 5340, 5696, 6000, 6400, 6675, 7120, 7500, 8000, 8544, 8900, 9600, 10000, 10680, 11125, 11392, 12000, 13350, 14240, 15000, 16000, 17088, 17800, 19200, 20000, 21360, 22250, 22784, 24000, 26700, 28480, 30000, 32000, 33375, 34176, 35600, 40000, 42720, 44500, 48000, 53400, 55625, 56960, 60000, 66750, 68352, 71200, 80000, 85440, 89000, 96000, 106800, 111250, 113920, 120000, 133500, 142400, 160000, 166875, 170880, 178000, 213600, 222500, 240000, 267000, 284800, 333750, 341760, 356000, 427200, 445000, 480000, 534000, 569600, 667500, 712000, 854400, 890000, 1068000, 1335000, 1424000, 1708800, 1780000, 2136000, 2670000, 2848000, 3560000, 4272000, 5340000, 7120000, 8544000, 10680000, 14240000, 21360000, 42720000]

約数ペア:

[(1, 42720000), (2, 21360000), (3, 14240000), (4, 10680000), (5, 8544000), (6, 7120000), (8, 5340000), (10, 4272000), (12, 3560000), (15, 2848000), (16, 2670000), (20, 2136000), (24, 1780000), (25, 1708800), (30, 1424000), (32, 1335000), (40, 1068000), (48, 890000), (50, 854400), (60, 712000), (64, 667500), (75, 569600), (80, 534000), (89, 480000), (96, 445000), (100, 427200), (120, 356000), (125, 341760), (128, 333750), (150, 284800), (160, 267000), (178, 240000), (192, 222500), (200, 213600), (240, 178000), (250, 170880), (256, 166875), (267, 160000), (300, 142400), (320, 133500), (356, 120000), (375, 113920), (384, 111250), (400, 106800), (445, 96000), (480, 89000), (500, 85440), (534, 80000), (600, 71200), (625, 68352), (640, 66750), (712, 60000), (750, 56960), (768, 55625), (800, 53400), (890, 48000), (960, 44500), (1000, 42720), (1068, 40000), (1200, 35600), (1250, 34176), (1280, 33375), (1335, 32000), (1424, 30000), (1500, 28480), (1600, 26700), (1780, 24000), (1875, 22784), (1920, 22250), (2000, 21360), (2136, 20000), (2225, 19200), (2400, 17800), (2500, 17088), (2670, 16000), (2848, 15000), (3000, 14240), (3200, 13350), (3560, 12000), (3750, 11392), (3840, 11125), (4000, 10680), (4272, 10000), (4450, 9600), (4800, 8900), (5000, 8544), (5340, 8000), (5696, 7500), (6000, 7120), (6400, 6675)]