18078120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:920

約数の個数: 128

約数和(自身を含む): 63504000

約数和(自身を除く): 45425880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 881, 1026, 1080, 1140, 1368, 1710, 1762, 2052, 2280, 2565, 2643, 3420, 3524, 4104, 4405, 5130, 5286, 6840, 7048, 7929, 8810, 10260, 10572, 13215, 15858, 16739, 17620, 20520, 21144, 23787, 26430, 31716, 33478, 35240, 39645, 47574, 50217, 52860, 63432, 66956, 79290, 83695, 95148, 100434, 105720, 118935, 133912, 150651, 158580, 167390, 190296, 200868, 237870, 251085, 301302, 317160, 334780, 401736, 451953, 475740, 502170, 602604, 669560, 753255, 903906, 951480, 1004340, 1205208, 1506510, 1807812, 2008680, 2259765, 3013020, 3615624, 4519530, 6026040, 9039060, 18078120]

約数ペア:

[(1, 18078120), (2, 9039060), (3, 6026040), (4, 4519530), (5, 3615624), (6, 3013020), (8, 2259765), (9, 2008680), (10, 1807812), (12, 1506510), (15, 1205208), (18, 1004340), (19, 951480), (20, 903906), (24, 753255), (27, 669560), (30, 602604), (36, 502170), (38, 475740), (40, 451953), (45, 401736), (54, 334780), (57, 317160), (60, 301302), (72, 251085), (76, 237870), (90, 200868), (95, 190296), (108, 167390), (114, 158580), (120, 150651), (135, 133912), (152, 118935), (171, 105720), (180, 100434), (190, 95148), (216, 83695), (228, 79290), (270, 66956), (285, 63432), (342, 52860), (360, 50217), (380, 47574), (456, 39645), (513, 35240), (540, 33478), (570, 31716), (684, 26430), (760, 23787), (855, 21144), (881, 20520), (1026, 17620), (1080, 16739), (1140, 15858), (1368, 13215), (1710, 10572), (1762, 10260), (2052, 8810), (2280, 7929), (2565, 7048), (2643, 6840), (3420, 5286), (3524, 5130), (4104, 4405)]