51217270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 104509440

約数和(自身を除く): 53292170

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 71, 130, 142, 155, 179, 310, 355, 358, 403, 710, 806, 895, 923, 1790, 1846, 2015, 2201, 2327, 4030, 4402, 4615, 4654, 5549, 9230, 11005, 11098, 11635, 12709, 22010, 23270, 25418, 27745, 28613, 55490, 57226, 63545, 72137, 127090, 143065, 144274, 165217, 286130, 330434, 360685, 393979, 721370, 787958, 826085, 1652170, 1969895, 3939790, 5121727, 10243454, 25608635, 51217270]

約数ペア:

[(1, 51217270), (2, 25608635), (5, 10243454), (10, 5121727), (13, 3939790), (26, 1969895), (31, 1652170), (62, 826085), (65, 787958), (71, 721370), (130, 393979), (142, 360685), (155, 330434), (179, 286130), (310, 165217), (355, 144274), (358, 143065), (403, 127090), (710, 72137), (806, 63545), (895, 57226), (923, 55490), (1790, 28613), (1846, 27745), (2015, 25418), (2201, 23270), (2327, 22010), (4030, 12709), (4402, 11635), (4615, 11098), (4654, 11005), (5549, 9230)]