251071492

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:533

約数の個数: 72

約数和(自身を含む): 532186200

約数和(自身を除く): 281114708

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 89, 98, 148, 178, 196, 259, 356, 389, 518, 623, 778, 1036, 1246, 1556, 1813, 2492, 2723, 3293, 3626, 4361, 5446, 6586, 7252, 8722, 10892, 13172, 14393, 17444, 19061, 23051, 28786, 34621, 38122, 46102, 57572, 69242, 76244, 92204, 100751, 138484, 161357, 201502, 242347, 322714, 403004, 484694, 645428, 705257, 969388, 1280977, 1410514, 1696429, 2561954, 2821028, 3392858, 5123908, 6785716, 8966839, 17933678, 35867356, 62767873, 125535746, 251071492]

約数ペア:

[(1, 251071492), (2, 125535746), (4, 62767873), (7, 35867356), (14, 17933678), (28, 8966839), (37, 6785716), (49, 5123908), (74, 3392858), (89, 2821028), (98, 2561954), (148, 1696429), (178, 1410514), (196, 1280977), (259, 969388), (356, 705257), (389, 645428), (518, 484694), (623, 403004), (778, 322714), (1036, 242347), (1246, 201502), (1556, 161357), (1813, 138484), (2492, 100751), (2723, 92204), (3293, 76244), (3626, 69242), (4361, 57572), (5446, 46102), (6586, 38122), (7252, 34621), (8722, 28786), (10892, 23051), (13172, 19061), (14393, 17444)]