28319800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 69973200

約数和(自身を除く): 41653400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 43, 50, 74, 86, 89, 100, 148, 172, 178, 185, 200, 215, 296, 344, 356, 370, 430, 445, 712, 740, 860, 890, 925, 1075, 1480, 1591, 1720, 1780, 1850, 2150, 2225, 3182, 3293, 3560, 3700, 3827, 4300, 4450, 6364, 6586, 7400, 7654, 7955, 8600, 8900, 12728, 13172, 15308, 15910, 16465, 17800, 19135, 26344, 30616, 31820, 32930, 38270, 39775, 63640, 65860, 76540, 79550, 82325, 95675, 131720, 141599, 153080, 159100, 164650, 191350, 283198, 318200, 329300, 382700, 566396, 658600, 707995, 765400, 1132792, 1415990, 2831980, 3539975, 5663960, 7079950, 14159900, 28319800]

約数ペア:

[(1, 28319800), (2, 14159900), (4, 7079950), (5, 5663960), (8, 3539975), (10, 2831980), (20, 1415990), (25, 1132792), (37, 765400), (40, 707995), (43, 658600), (50, 566396), (74, 382700), (86, 329300), (89, 318200), (100, 283198), (148, 191350), (172, 164650), (178, 159100), (185, 153080), (200, 141599), (215, 131720), (296, 95675), (344, 82325), (356, 79550), (370, 76540), (430, 65860), (445, 63640), (712, 39775), (740, 38270), (860, 32930), (890, 31820), (925, 30616), (1075, 26344), (1480, 19135), (1591, 17800), (1720, 16465), (1780, 15910), (1850, 15308), (2150, 13172), (2225, 12728), (3182, 8900), (3293, 8600), (3560, 7955), (3700, 7654), (3827, 7400), (4300, 6586), (4450, 6364)]