639490536

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{240049}}^1$

素因数の和:240098

約数の個数: 48

約数和(自身を含む): 1778770500

約数和(自身を除く): 1139279964

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 240049, 480098, 720147, 960196, 1440294, 1920392, 2160441, 2880588, 4320882, 5761176, 8641764, 8881813, 17283528, 17763626, 26645439, 35527252, 53290878, 71054504, 79936317, 106581756, 159872634, 213163512, 319745268, 639490536]

約数ペア:

[(1, 639490536), (2, 319745268), (3, 213163512), (4, 159872634), (6, 106581756), (8, 79936317), (9, 71054504), (12, 53290878), (18, 35527252), (24, 26645439), (36, 17763626), (37, 17283528), (72, 8881813), (74, 8641764), (111, 5761176), (148, 4320882), (222, 2880588), (296, 2160441), (333, 1920392), (444, 1440294), (666, 960196), (888, 720147), (1332, 480098), (2664, 240049)]