71712640

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1259}}^1$

素因数の和:1367

約数の個数: 64

約数和(自身を含む): 173502000

約数和(自身を除く): 101789360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 445, 640, 712, 890, 1259, 1424, 1780, 2518, 2848, 3560, 5036, 5696, 6295, 7120, 10072, 11392, 12590, 14240, 20144, 25180, 28480, 40288, 50360, 56960, 80576, 100720, 112051, 161152, 201440, 224102, 402880, 448204, 560255, 805760, 896408, 1120510, 1792816, 2241020, 3585632, 4482040, 7171264, 8964080, 14342528, 17928160, 35856320, 71712640]

約数ペア:

[(1, 71712640), (2, 35856320), (4, 17928160), (5, 14342528), (8, 8964080), (10, 7171264), (16, 4482040), (20, 3585632), (32, 2241020), (40, 1792816), (64, 1120510), (80, 896408), (89, 805760), (128, 560255), (160, 448204), (178, 402880), (320, 224102), (356, 201440), (445, 161152), (640, 112051), (712, 100720), (890, 80576), (1259, 56960), (1424, 50360), (1780, 40288), (2518, 28480), (2848, 25180), (3560, 20144), (5036, 14240), (5696, 12590), (6295, 11392), (7120, 10072)]