20538240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:604

約数の個数: 128

約数和(自身を含む): 69033600

約数和(自身を除く): 48495360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 152, 160, 190, 192, 228, 240, 285, 304, 320, 380, 384, 456, 480, 563, 570, 608, 640, 760, 912, 960, 1126, 1140, 1216, 1520, 1689, 1824, 1920, 2252, 2280, 2432, 2815, 3040, 3378, 3648, 4504, 4560, 5630, 6080, 6756, 7296, 8445, 9008, 9120, 10697, 11260, 12160, 13512, 16890, 18016, 18240, 21394, 22520, 27024, 32091, 33780, 36032, 36480, 42788, 45040, 53485, 54048, 64182, 67560, 72064, 85576, 90080, 106970, 108096, 128364, 135120, 160455, 171152, 180160, 213940, 216192, 256728, 270240, 320910, 342304, 360320, 427880, 513456, 540480, 641820, 684608, 855760, 1026912, 1080960, 1283640, 1369216, 1711520, 2053824, 2567280, 3423040, 4107648, 5134560, 6846080, 10269120, 20538240]

約数ペア:

[(1, 20538240), (2, 10269120), (3, 6846080), (4, 5134560), (5, 4107648), (6, 3423040), (8, 2567280), (10, 2053824), (12, 1711520), (15, 1369216), (16, 1283640), (19, 1080960), (20, 1026912), (24, 855760), (30, 684608), (32, 641820), (38, 540480), (40, 513456), (48, 427880), (57, 360320), (60, 342304), (64, 320910), (76, 270240), (80, 256728), (95, 216192), (96, 213940), (114, 180160), (120, 171152), (128, 160455), (152, 135120), (160, 128364), (190, 108096), (192, 106970), (228, 90080), (240, 85576), (285, 72064), (304, 67560), (320, 64182), (380, 54048), (384, 53485), (456, 45040), (480, 42788), (563, 36480), (570, 36032), (608, 33780), (640, 32091), (760, 27024), (912, 22520), (960, 21394), (1126, 18240), (1140, 18016), (1216, 16890), (1520, 13512), (1689, 12160), (1824, 11260), (1920, 10697), (2252, 9120), (2280, 9008), (2432, 8445), (2815, 7296), (3040, 6756), (3378, 6080), (3648, 5630), (4504, 4560)]