66444860

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 143428320

約数和(自身を除く): 76983460

約数列:

[1, 2, 4, 5, 10, 20, 61, 107, 122, 214, 244, 305, 428, 509, 535, 610, 1018, 1070, 1220, 2036, 2140, 2545, 5090, 6527, 10180, 13054, 26108, 31049, 32635, 54463, 62098, 65270, 108926, 124196, 130540, 155245, 217852, 272315, 310490, 544630, 620980, 1089260, 3322243, 6644486, 13288972, 16611215, 33222430, 66444860]

約数ペア:

[(1, 66444860), (2, 33222430), (4, 16611215), (5, 13288972), (10, 6644486), (20, 3322243), (61, 1089260), (107, 620980), (122, 544630), (214, 310490), (244, 272315), (305, 217852), (428, 155245), (509, 130540), (535, 124196), (610, 108926), (1018, 65270), (1070, 62098), (1220, 54463), (2036, 32635), (2140, 31049), (2545, 26108), (5090, 13054), (6527, 10180)]