638654324

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{19379}}^1$

素因数の和:19508

約数の個数: 48

約数和(自身を含む): 1406522880

約数和(自身を除く): 767868556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 107, 154, 214, 308, 428, 749, 1177, 1498, 2354, 2996, 4708, 8239, 16478, 19379, 32956, 38758, 77516, 135653, 213169, 271306, 426338, 542612, 852676, 1492183, 2073553, 2984366, 4147106, 5968732, 8294212, 14514871, 22809083, 29029742, 45618166, 58059484, 91236332, 159663581, 319327162, 638654324]

約数ペア:

[(1, 638654324), (2, 319327162), (4, 159663581), (7, 91236332), (11, 58059484), (14, 45618166), (22, 29029742), (28, 22809083), (44, 14514871), (77, 8294212), (107, 5968732), (154, 4147106), (214, 2984366), (308, 2073553), (428, 1492183), (749, 852676), (1177, 542612), (1498, 426338), (2354, 271306), (2996, 213169), (4708, 135653), (8239, 77516), (16478, 38758), (19379, 32956)]