642666704

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{21961}}^1$

素因数の和:22059

約数の個数: 40

約数和(自身を含む): 1307178240

約数和(自身を除く): 664511536

約数列:

[1, 2, 4, 8, 16, 31, 59, 62, 118, 124, 236, 248, 472, 496, 944, 1829, 3658, 7316, 14632, 21961, 29264, 43922, 87844, 175688, 351376, 680791, 1295699, 1361582, 2591398, 2723164, 5182796, 5446328, 10365592, 10892656, 20731184, 40166669, 80333338, 160666676, 321333352, 642666704]

約数ペア:

[(1, 642666704), (2, 321333352), (4, 160666676), (8, 80333338), (16, 40166669), (31, 20731184), (59, 10892656), (62, 10365592), (118, 5446328), (124, 5182796), (236, 2723164), (248, 2591398), (472, 1361582), (496, 1295699), (944, 680791), (1829, 351376), (3658, 175688), (7316, 87844), (14632, 43922), (21961, 29264)]