218375780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{751}}^1$

素因数の和:865

約数の個数: 96

約数和(自身を含む): 549814272

約数和(自身を除く): 331438492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 67, 70, 124, 134, 140, 155, 217, 268, 310, 335, 434, 469, 620, 670, 751, 868, 938, 1085, 1340, 1502, 1876, 2077, 2170, 2345, 3004, 3755, 4154, 4340, 4690, 5257, 7510, 8308, 9380, 10385, 10514, 14539, 15020, 20770, 21028, 23281, 26285, 29078, 41540, 46562, 50317, 52570, 58156, 72695, 93124, 100634, 105140, 116405, 145390, 162967, 201268, 232810, 251585, 290780, 325934, 352219, 465620, 503170, 651868, 704438, 814835, 1006340, 1408876, 1559827, 1629670, 1761095, 3119654, 3259340, 3522190, 6239308, 7044380, 7799135, 10918789, 15598270, 21837578, 31196540, 43675156, 54593945, 109187890, 218375780]

約数ペア:

[(1, 218375780), (2, 109187890), (4, 54593945), (5, 43675156), (7, 31196540), (10, 21837578), (14, 15598270), (20, 10918789), (28, 7799135), (31, 7044380), (35, 6239308), (62, 3522190), (67, 3259340), (70, 3119654), (124, 1761095), (134, 1629670), (140, 1559827), (155, 1408876), (217, 1006340), (268, 814835), (310, 704438), (335, 651868), (434, 503170), (469, 465620), (620, 352219), (670, 325934), (751, 290780), (868, 251585), (938, 232810), (1085, 201268), (1340, 162967), (1502, 145390), (1876, 116405), (2077, 105140), (2170, 100634), (2345, 93124), (3004, 72695), (3755, 58156), (4154, 52570), (4340, 50317), (4690, 46562), (5257, 41540), (7510, 29078), (8308, 26285), (9380, 23281), (10385, 21028), (10514, 20770), (14539, 15020)]