64486940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2861}}^1$

素因数の和:2907

約数の個数: 72

約数和(自身を含む): 164439072

約数和(自身を除く): 99952132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 2861, 3220, 4508, 5635, 5722, 11270, 11444, 14305, 20027, 22540, 28610, 40054, 57220, 65803, 80108, 100135, 131606, 140189, 200270, 263212, 280378, 329015, 400540, 460621, 560756, 658030, 700945, 921242, 1316060, 1401890, 1842484, 2303105, 2803780, 3224347, 4606210, 6448694, 9212420, 12897388, 16121735, 32243470, 64486940]

約数ペア:

[(1, 64486940), (2, 32243470), (4, 16121735), (5, 12897388), (7, 9212420), (10, 6448694), (14, 4606210), (20, 3224347), (23, 2803780), (28, 2303105), (35, 1842484), (46, 1401890), (49, 1316060), (70, 921242), (92, 700945), (98, 658030), (115, 560756), (140, 460621), (161, 400540), (196, 329015), (230, 280378), (245, 263212), (322, 200270), (460, 140189), (490, 131606), (644, 100135), (805, 80108), (980, 65803), (1127, 57220), (1610, 40054), (2254, 28610), (2861, 22540), (3220, 20027), (4508, 14305), (5635, 11444), (5722, 11270)]