21553920

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1871}}^1$

素因数の和:1898

約数の個数: 108

約数和(自身を含む): 74614176

約数和(自身を除く): 53060256

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1871, 1920, 2304, 2880, 3742, 3840, 5613, 5760, 7484, 9355, 11226, 11520, 14968, 16839, 18710, 22452, 28065, 29936, 33678, 37420, 44904, 56130, 59872, 67356, 74840, 84195, 89808, 112260, 119744, 134712, 149680, 168390, 179616, 224520, 239488, 269424, 299360, 336780, 359232, 449040, 478976, 538848, 598720, 673560, 718464, 898080, 1077696, 1197440, 1347120, 1436928, 1796160, 2155392, 2394880, 2694240, 3592320, 4310784, 5388480, 7184640, 10776960, 21553920]

約数ペア:

[(1, 21553920), (2, 10776960), (3, 7184640), (4, 5388480), (5, 4310784), (6, 3592320), (8, 2694240), (9, 2394880), (10, 2155392), (12, 1796160), (15, 1436928), (16, 1347120), (18, 1197440), (20, 1077696), (24, 898080), (30, 718464), (32, 673560), (36, 598720), (40, 538848), (45, 478976), (48, 449040), (60, 359232), (64, 336780), (72, 299360), (80, 269424), (90, 239488), (96, 224520), (120, 179616), (128, 168390), (144, 149680), (160, 134712), (180, 119744), (192, 112260), (240, 89808), (256, 84195), (288, 74840), (320, 67356), (360, 59872), (384, 56130), (480, 44904), (576, 37420), (640, 33678), (720, 29936), (768, 28065), (960, 22452), (1152, 18710), (1280, 16839), (1440, 14968), (1871, 11520), (1920, 11226), (2304, 9355), (2880, 7484), (3742, 5760), (3840, 5613)]