55128420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 176904000

約数和(自身を除く): 121775580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 59, 60, 87, 90, 116, 118, 145, 174, 177, 179, 180, 236, 261, 290, 295, 348, 354, 358, 435, 522, 531, 537, 580, 590, 708, 716, 870, 885, 895, 1044, 1062, 1074, 1180, 1305, 1611, 1711, 1740, 1770, 1790, 2124, 2148, 2610, 2655, 2685, 3222, 3422, 3540, 3580, 5133, 5191, 5220, 5310, 5370, 6444, 6844, 8055, 8555, 10266, 10382, 10561, 10620, 10740, 15399, 15573, 16110, 17110, 20532, 20764, 21122, 25665, 25955, 30798, 31146, 31683, 32220, 34220, 42244, 46719, 51330, 51910, 52805, 61596, 62292, 63366, 76995, 77865, 93438, 95049, 102660, 103820, 105610, 126732, 153990, 155730, 158415, 186876, 190098, 211220, 233595, 306269, 307980, 311460, 316830, 380196, 467190, 475245, 612538, 633660, 918807, 934380, 950490, 1225076, 1531345, 1837614, 1900980, 2756421, 3062690, 3675228, 4594035, 5512842, 6125380, 9188070, 11025684, 13782105, 18376140, 27564210, 55128420]

約数ペア:

[(1, 55128420), (2, 27564210), (3, 18376140), (4, 13782105), (5, 11025684), (6, 9188070), (9, 6125380), (10, 5512842), (12, 4594035), (15, 3675228), (18, 3062690), (20, 2756421), (29, 1900980), (30, 1837614), (36, 1531345), (45, 1225076), (58, 950490), (59, 934380), (60, 918807), (87, 633660), (90, 612538), (116, 475245), (118, 467190), (145, 380196), (174, 316830), (177, 311460), (179, 307980), (180, 306269), (236, 233595), (261, 211220), (290, 190098), (295, 186876), (348, 158415), (354, 155730), (358, 153990), (435, 126732), (522, 105610), (531, 103820), (537, 102660), (580, 95049), (590, 93438), (708, 77865), (716, 76995), (870, 63366), (885, 62292), (895, 61596), (1044, 52805), (1062, 51910), (1074, 51330), (1180, 46719), (1305, 42244), (1611, 34220), (1711, 32220), (1740, 31683), (1770, 31146), (1790, 30798), (2124, 25955), (2148, 25665), (2610, 21122), (2655, 20764), (2685, 20532), (3222, 17110), (3422, 16110), (3540, 15573), (3580, 15399), (5133, 10740), (5191, 10620), (5220, 10561), (5310, 10382), (5370, 10266), (6444, 8555), (6844, 8055)]