31175270

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 66960000

約数和(自身を除く): 35784730

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 149, 245, 298, 305, 343, 427, 490, 610, 686, 745, 854, 1043, 1490, 1715, 2086, 2135, 2989, 3430, 4270, 5215, 5978, 7301, 9089, 10430, 14602, 14945, 18178, 20923, 29890, 36505, 41846, 45445, 51107, 63623, 73010, 90890, 102214, 104615, 127246, 209230, 255535, 318115, 445361, 511070, 636230, 890722, 2226805, 3117527, 4453610, 6235054, 15587635, 31175270]

約数ペア:

[(1, 31175270), (2, 15587635), (5, 6235054), (7, 4453610), (10, 3117527), (14, 2226805), (35, 890722), (49, 636230), (61, 511070), (70, 445361), (98, 318115), (122, 255535), (149, 209230), (245, 127246), (298, 104615), (305, 102214), (343, 90890), (427, 73010), (490, 63623), (610, 51107), (686, 45445), (745, 41846), (854, 36505), (1043, 29890), (1490, 20923), (1715, 18178), (2086, 14945), (2135, 14602), (2989, 10430), (3430, 9089), (4270, 7301), (5215, 5978)]