18816840

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:177

約数の個数: 256

約数和(自身を含む): 76032000

約数和(自身を除く): 57215160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 131, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 262, 266, 270, 280, 285, 315, 342, 360, 378, 380, 393, 399, 420, 456, 504, 513, 524, 532, 540, 570, 630, 655, 665, 684, 756, 760, 786, 798, 840, 855, 917, 945, 1026, 1048, 1064, 1080, 1140, 1179, 1197, 1260, 1310, 1330, 1368, 1512, 1572, 1596, 1710, 1834, 1890, 1965, 1995, 2052, 2280, 2358, 2394, 2489, 2520, 2565, 2620, 2660, 2751, 3144, 3192, 3420, 3537, 3591, 3668, 3780, 3930, 3990, 4104, 4585, 4716, 4788, 4978, 5130, 5240, 5320, 5502, 5895, 5985, 6840, 7074, 7182, 7336, 7467, 7560, 7860, 7980, 8253, 9170, 9432, 9576, 9956, 10260, 11004, 11790, 11970, 12445, 13755, 14148, 14364, 14934, 15720, 15960, 16506, 17423, 17685, 17955, 18340, 19912, 20520, 22008, 22401, 23580, 23940, 24759, 24890, 27510, 28296, 28728, 29868, 33012, 34846, 35370, 35910, 36680, 37335, 41265, 44802, 47160, 47880, 49518, 49780, 52269, 55020, 59736, 66024, 67203, 69692, 70740, 71820, 74670, 82530, 87115, 89604, 99036, 99560, 104538, 110040, 112005, 123795, 134406, 139384, 141480, 143640, 149340, 156807, 165060, 174230, 179208, 198072, 209076, 224010, 247590, 261345, 268812, 298680, 313614, 330120, 336015, 348460, 418152, 448020, 470421, 495180, 522690, 537624, 627228, 672030, 696920, 784035, 896040, 940842, 990360, 1045380, 1254456, 1344060, 1568070, 1881684, 2090760, 2352105, 2688120, 3136140, 3763368, 4704210, 6272280, 9408420, 18816840]

約数ペア:

[(1, 18816840), (2, 9408420), (3, 6272280), (4, 4704210), (5, 3763368), (6, 3136140), (7, 2688120), (8, 2352105), (9, 2090760), (10, 1881684), (12, 1568070), (14, 1344060), (15, 1254456), (18, 1045380), (19, 990360), (20, 940842), (21, 896040), (24, 784035), (27, 696920), (28, 672030), (30, 627228), (35, 537624), (36, 522690), (38, 495180), (40, 470421), (42, 448020), (45, 418152), (54, 348460), (56, 336015), (57, 330120), (60, 313614), (63, 298680), (70, 268812), (72, 261345), (76, 247590), (84, 224010), (90, 209076), (95, 198072), (105, 179208), (108, 174230), (114, 165060), (120, 156807), (126, 149340), (131, 143640), (133, 141480), (135, 139384), (140, 134406), (152, 123795), (168, 112005), (171, 110040), (180, 104538), (189, 99560), (190, 99036), (210, 89604), (216, 87115), (228, 82530), (252, 74670), (262, 71820), (266, 70740), (270, 69692), (280, 67203), (285, 66024), (315, 59736), (342, 55020), (360, 52269), (378, 49780), (380, 49518), (393, 47880), (399, 47160), (420, 44802), (456, 41265), (504, 37335), (513, 36680), (524, 35910), (532, 35370), (540, 34846), (570, 33012), (630, 29868), (655, 28728), (665, 28296), (684, 27510), (756, 24890), (760, 24759), (786, 23940), (798, 23580), (840, 22401), (855, 22008), (917, 20520), (945, 19912), (1026, 18340), (1048, 17955), (1064, 17685), (1080, 17423), (1140, 16506), (1179, 15960), (1197, 15720), (1260, 14934), (1310, 14364), (1330, 14148), (1368, 13755), (1512, 12445), (1572, 11970), (1596, 11790), (1710, 11004), (1834, 10260), (1890, 9956), (1965, 9576), (1995, 9432), (2052, 9170), (2280, 8253), (2358, 7980), (2394, 7860), (2489, 7560), (2520, 7467), (2565, 7336), (2620, 7182), (2660, 7074), (2751, 6840), (3144, 5985), (3192, 5895), (3420, 5502), (3537, 5320), (3591, 5240), (3668, 5130), (3780, 4978), (3930, 4788), (3990, 4716), (4104, 4585)]