20101291700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{667817}}^1$

素因数の和:667881

約数の個数: 72

約数和(自身を含む): 51010610112

約数和(自身を除く): 30909318412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 700, 860, 1075, 1204, 1505, 2150, 3010, 4300, 6020, 7525, 15050, 30100, 667817, 1335634, 2671268, 3339085, 4674719, 6678170, 9349438, 13356340, 16695425, 18698876, 23373595, 28716131, 33390850, 46747190, 57432262, 66781700, 93494380, 114864524, 116867975, 143580655, 201012917, 233735950, 287161310, 402025834, 467471900, 574322620, 717903275, 804051668, 1005064585, 1435806550, 2010129170, 2871613100, 4020258340, 5025322925, 10050645850, 20101291700]

約数ペア:

[(1, 20101291700), (2, 10050645850), (4, 5025322925), (5, 4020258340), (7, 2871613100), (10, 2010129170), (14, 1435806550), (20, 1005064585), (25, 804051668), (28, 717903275), (35, 574322620), (43, 467471900), (50, 402025834), (70, 287161310), (86, 233735950), (100, 201012917), (140, 143580655), (172, 116867975), (175, 114864524), (215, 93494380), (301, 66781700), (350, 57432262), (430, 46747190), (602, 33390850), (700, 28716131), (860, 23373595), (1075, 18698876), (1204, 16695425), (1505, 13356340), (2150, 9349438), (3010, 6678170), (4300, 4674719), (6020, 3339085), (7525, 2671268), (15050, 1335634), (30100, 667817)]