20993040

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9719}}^1$

素因数の和:9741

約数の個数: 80

約数和(自身を含む): 72316800

約数和(自身を除く): 51323760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9719, 19438, 29157, 38876, 48595, 58314, 77752, 87471, 97190, 116628, 145785, 155504, 174942, 194380, 233256, 262413, 291570, 349884, 388760, 437355, 466512, 524826, 583140, 699768, 777520, 874710, 1049652, 1166280, 1312065, 1399536, 1749420, 2099304, 2332560, 2624130, 3498840, 4198608, 5248260, 6997680, 10496520, 20993040]

約数ペア:

[(1, 20993040), (2, 10496520), (3, 6997680), (4, 5248260), (5, 4198608), (6, 3498840), (8, 2624130), (9, 2332560), (10, 2099304), (12, 1749420), (15, 1399536), (16, 1312065), (18, 1166280), (20, 1049652), (24, 874710), (27, 777520), (30, 699768), (36, 583140), (40, 524826), (45, 466512), (48, 437355), (54, 388760), (60, 349884), (72, 291570), (80, 262413), (90, 233256), (108, 194380), (120, 174942), (135, 155504), (144, 145785), (180, 116628), (216, 97190), (240, 87471), (270, 77752), (360, 58314), (432, 48595), (540, 38876), (720, 29157), (1080, 19438), (2160, 9719)]