20889360

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:550

約数の個数: 160

約数和(自身を含む): 75888000

約数和(自身を除く): 54998640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 108, 114, 120, 135, 144, 152, 171, 180, 190, 216, 228, 240, 270, 285, 304, 342, 360, 380, 432, 456, 509, 513, 540, 570, 684, 720, 760, 855, 912, 1018, 1026, 1080, 1140, 1368, 1520, 1527, 1710, 2036, 2052, 2160, 2280, 2545, 2565, 2736, 3054, 3420, 4072, 4104, 4560, 4581, 5090, 5130, 6108, 6840, 7635, 8144, 8208, 9162, 9671, 10180, 10260, 12216, 13680, 13743, 15270, 18324, 19342, 20360, 20520, 22905, 24432, 27486, 29013, 30540, 36648, 38684, 40720, 41040, 45810, 48355, 54972, 58026, 61080, 68715, 73296, 77368, 87039, 91620, 96710, 109944, 116052, 122160, 137430, 145065, 154736, 174078, 183240, 193420, 219888, 232104, 261117, 274860, 290130, 348156, 366480, 386840, 435195, 464208, 522234, 549720, 580260, 696312, 773680, 870390, 1044468, 1099440, 1160520, 1305585, 1392624, 1740780, 2088936, 2321040, 2611170, 3481560, 4177872, 5222340, 6963120, 10444680, 20889360]

約数ペア:

[(1, 20889360), (2, 10444680), (3, 6963120), (4, 5222340), (5, 4177872), (6, 3481560), (8, 2611170), (9, 2321040), (10, 2088936), (12, 1740780), (15, 1392624), (16, 1305585), (18, 1160520), (19, 1099440), (20, 1044468), (24, 870390), (27, 773680), (30, 696312), (36, 580260), (38, 549720), (40, 522234), (45, 464208), (48, 435195), (54, 386840), (57, 366480), (60, 348156), (72, 290130), (76, 274860), (80, 261117), (90, 232104), (95, 219888), (108, 193420), (114, 183240), (120, 174078), (135, 154736), (144, 145065), (152, 137430), (171, 122160), (180, 116052), (190, 109944), (216, 96710), (228, 91620), (240, 87039), (270, 77368), (285, 73296), (304, 68715), (342, 61080), (360, 58026), (380, 54972), (432, 48355), (456, 45810), (509, 41040), (513, 40720), (540, 38684), (570, 36648), (684, 30540), (720, 29013), (760, 27486), (855, 24432), (912, 22905), (1018, 20520), (1026, 20360), (1080, 19342), (1140, 18324), (1368, 15270), (1520, 13743), (1527, 13680), (1710, 12216), (2036, 10260), (2052, 10180), (2160, 9671), (2280, 9162), (2545, 8208), (2565, 8144), (2736, 7635), (3054, 6840), (3420, 6108), (4072, 5130), (4104, 5090), (4560, 4581)]