20542400

素因数分解:

$2^6\times 5^2\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:406

約数の個数: 84

約数和(自身を含む): 52062888

約数和(自身を除く): 31520488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 64, 74, 80, 100, 148, 160, 185, 200, 296, 320, 347, 370, 400, 592, 694, 740, 800, 925, 1184, 1388, 1480, 1600, 1735, 1850, 2368, 2776, 2960, 3470, 3700, 5552, 5920, 6940, 7400, 8675, 11104, 11840, 12839, 13880, 14800, 17350, 22208, 25678, 27760, 29600, 34700, 51356, 55520, 59200, 64195, 69400, 102712, 111040, 128390, 138800, 205424, 256780, 277600, 320975, 410848, 513560, 555200, 641950, 821696, 1027120, 1283900, 2054240, 2567800, 4108480, 5135600, 10271200, 20542400]

約数ペア:

[(1, 20542400), (2, 10271200), (4, 5135600), (5, 4108480), (8, 2567800), (10, 2054240), (16, 1283900), (20, 1027120), (25, 821696), (32, 641950), (37, 555200), (40, 513560), (50, 410848), (64, 320975), (74, 277600), (80, 256780), (100, 205424), (148, 138800), (160, 128390), (185, 111040), (200, 102712), (296, 69400), (320, 64195), (347, 59200), (370, 55520), (400, 51356), (592, 34700), (694, 29600), (740, 27760), (800, 25678), (925, 22208), (1184, 17350), (1388, 14800), (1480, 13880), (1600, 12839), (1735, 11840), (1850, 11104), (2368, 8675), (2776, 7400), (2960, 6940), (3470, 5920), (3700, 5552)]