28225260

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:178

約数の個数: 240

約数和(自身を含む): 107331840

約数和(自身を除く): 79106580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 81, 84, 90, 95, 105, 108, 114, 126, 131, 133, 135, 140, 162, 171, 180, 189, 190, 210, 228, 252, 262, 266, 270, 285, 315, 324, 342, 378, 380, 393, 399, 405, 420, 513, 524, 532, 540, 567, 570, 630, 655, 665, 684, 756, 786, 798, 810, 855, 917, 945, 1026, 1134, 1140, 1179, 1197, 1260, 1310, 1330, 1539, 1572, 1596, 1620, 1710, 1834, 1890, 1965, 1995, 2052, 2268, 2358, 2394, 2489, 2565, 2620, 2660, 2751, 2835, 3078, 3420, 3537, 3591, 3668, 3780, 3930, 3990, 4585, 4716, 4788, 4978, 5130, 5502, 5670, 5895, 5985, 6156, 7074, 7182, 7467, 7695, 7860, 7980, 8253, 9170, 9956, 10260, 10611, 10773, 11004, 11340, 11790, 11970, 12445, 13755, 14148, 14364, 14934, 15390, 16506, 17423, 17685, 17955, 18340, 21222, 21546, 22401, 23580, 23940, 24759, 24890, 27510, 29868, 30780, 33012, 34846, 35370, 35910, 37335, 41265, 42444, 43092, 44802, 49518, 49780, 52269, 53055, 53865, 55020, 67203, 69692, 70740, 71820, 74277, 74670, 82530, 87115, 89604, 99036, 104538, 106110, 107730, 112005, 123795, 134406, 148554, 149340, 156807, 165060, 174230, 201609, 209076, 212220, 215460, 224010, 247590, 261345, 268812, 297108, 313614, 336015, 348460, 371385, 403218, 448020, 470421, 495180, 522690, 627228, 672030, 742770, 784035, 806436, 940842, 1008045, 1045380, 1344060, 1411263, 1485540, 1568070, 1881684, 2016090, 2352105, 2822526, 3136140, 4032180, 4704210, 5645052, 7056315, 9408420, 14112630, 28225260]

約数ペア:

[(1, 28225260), (2, 14112630), (3, 9408420), (4, 7056315), (5, 5645052), (6, 4704210), (7, 4032180), (9, 3136140), (10, 2822526), (12, 2352105), (14, 2016090), (15, 1881684), (18, 1568070), (19, 1485540), (20, 1411263), (21, 1344060), (27, 1045380), (28, 1008045), (30, 940842), (35, 806436), (36, 784035), (38, 742770), (42, 672030), (45, 627228), (54, 522690), (57, 495180), (60, 470421), (63, 448020), (70, 403218), (76, 371385), (81, 348460), (84, 336015), (90, 313614), (95, 297108), (105, 268812), (108, 261345), (114, 247590), (126, 224010), (131, 215460), (133, 212220), (135, 209076), (140, 201609), (162, 174230), (171, 165060), (180, 156807), (189, 149340), (190, 148554), (210, 134406), (228, 123795), (252, 112005), (262, 107730), (266, 106110), (270, 104538), (285, 99036), (315, 89604), (324, 87115), (342, 82530), (378, 74670), (380, 74277), (393, 71820), (399, 70740), (405, 69692), (420, 67203), (513, 55020), (524, 53865), (532, 53055), (540, 52269), (567, 49780), (570, 49518), (630, 44802), (655, 43092), (665, 42444), (684, 41265), (756, 37335), (786, 35910), (798, 35370), (810, 34846), (855, 33012), (917, 30780), (945, 29868), (1026, 27510), (1134, 24890), (1140, 24759), (1179, 23940), (1197, 23580), (1260, 22401), (1310, 21546), (1330, 21222), (1539, 18340), (1572, 17955), (1596, 17685), (1620, 17423), (1710, 16506), (1834, 15390), (1890, 14934), (1965, 14364), (1995, 14148), (2052, 13755), (2268, 12445), (2358, 11970), (2394, 11790), (2489, 11340), (2565, 11004), (2620, 10773), (2660, 10611), (2751, 10260), (2835, 9956), (3078, 9170), (3420, 8253), (3537, 7980), (3591, 7860), (3668, 7695), (3780, 7467), (3930, 7182), (3990, 7074), (4585, 6156), (4716, 5985), (4788, 5895), (4978, 5670), (5130, 5502)]