21277440

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1847}}^1$

素因数の和:1874

約数の個数: 108

約数和(自身を含む): 73657584

約数和(自身を除く): 52380144

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, 1847, 1920, 2304, 2880, 3694, 3840, 5541, 5760, 7388, 9235, 11082, 11520, 14776, 16623, 18470, 22164, 27705, 29552, 33246, 36940, 44328, 55410, 59104, 66492, 73880, 83115, 88656, 110820, 118208, 132984, 147760, 166230, 177312, 221640, 236416, 265968, 295520, 332460, 354624, 443280, 472832, 531936, 591040, 664920, 709248, 886560, 1063872, 1182080, 1329840, 1418496, 1773120, 2127744, 2364160, 2659680, 3546240, 4255488, 5319360, 7092480, 10638720, 21277440]

約数ペア:

[(1, 21277440), (2, 10638720), (3, 7092480), (4, 5319360), (5, 4255488), (6, 3546240), (8, 2659680), (9, 2364160), (10, 2127744), (12, 1773120), (15, 1418496), (16, 1329840), (18, 1182080), (20, 1063872), (24, 886560), (30, 709248), (32, 664920), (36, 591040), (40, 531936), (45, 472832), (48, 443280), (60, 354624), (64, 332460), (72, 295520), (80, 265968), (90, 236416), (96, 221640), (120, 177312), (128, 166230), (144, 147760), (160, 132984), (180, 118208), (192, 110820), (240, 88656), (256, 83115), (288, 73880), (320, 66492), (360, 59104), (384, 55410), (480, 44328), (576, 36940), (640, 33246), (720, 29552), (768, 27705), (960, 22164), (1152, 18470), (1280, 16623), (1440, 14776), (1847, 11520), (1920, 11082), (2304, 9235), (2880, 7388), (3694, 5760), (3840, 5541)]