20407530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 59222016

約数和(自身を除く): 38814486

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 67, 71, 78, 110, 130, 134, 142, 143, 165, 195, 201, 213, 286, 330, 335, 355, 390, 402, 426, 429, 670, 710, 715, 737, 781, 858, 871, 923, 1005, 1065, 1430, 1474, 1562, 1742, 1846, 2010, 2130, 2145, 2211, 2343, 2613, 2769, 3685, 3905, 4290, 4355, 4422, 4615, 4686, 4757, 5226, 5538, 7370, 7810, 8710, 9230, 9514, 9581, 10153, 11055, 11715, 13065, 13845, 14271, 19162, 20306, 22110, 23430, 23785, 26130, 27690, 28542, 28743, 30459, 47570, 47905, 50765, 52327, 57486, 60918, 61841, 71355, 95810, 101530, 104654, 123682, 142710, 143715, 152295, 156981, 185523, 261635, 287430, 304590, 309205, 313962, 371046, 523270, 618410, 680251, 784905, 927615, 1360502, 1569810, 1855230, 2040753, 3401255, 4081506, 6802510, 10203765, 20407530]

約数ペア:

[(1, 20407530), (2, 10203765), (3, 6802510), (5, 4081506), (6, 3401255), (10, 2040753), (11, 1855230), (13, 1569810), (15, 1360502), (22, 927615), (26, 784905), (30, 680251), (33, 618410), (39, 523270), (55, 371046), (65, 313962), (66, 309205), (67, 304590), (71, 287430), (78, 261635), (110, 185523), (130, 156981), (134, 152295), (142, 143715), (143, 142710), (165, 123682), (195, 104654), (201, 101530), (213, 95810), (286, 71355), (330, 61841), (335, 60918), (355, 57486), (390, 52327), (402, 50765), (426, 47905), (429, 47570), (670, 30459), (710, 28743), (715, 28542), (737, 27690), (781, 26130), (858, 23785), (871, 23430), (923, 22110), (1005, 20306), (1065, 19162), (1430, 14271), (1474, 13845), (1562, 13065), (1742, 11715), (1846, 11055), (2010, 10153), (2130, 9581), (2145, 9514), (2211, 9230), (2343, 8710), (2613, 7810), (2769, 7370), (3685, 5538), (3905, 5226), (4290, 4757), (4355, 4686), (4422, 4615)]