20539064

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 48081600

約数和(自身を除く): 27542536

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 89, 91, 104, 178, 182, 317, 356, 364, 623, 634, 712, 728, 1157, 1246, 1268, 2219, 2314, 2492, 2536, 4121, 4438, 4628, 4984, 8099, 8242, 8876, 9256, 16198, 16484, 17752, 28213, 28847, 32396, 32968, 56426, 57694, 64792, 112852, 115388, 197491, 225704, 230776, 366769, 394982, 733538, 789964, 1467076, 1579928, 2567383, 2934152, 5134766, 10269532, 20539064]

約数ペア:

[(1, 20539064), (2, 10269532), (4, 5134766), (7, 2934152), (8, 2567383), (13, 1579928), (14, 1467076), (26, 789964), (28, 733538), (52, 394982), (56, 366769), (89, 230776), (91, 225704), (104, 197491), (178, 115388), (182, 112852), (317, 64792), (356, 57694), (364, 56426), (623, 32968), (634, 32396), (712, 28847), (728, 28213), (1157, 17752), (1246, 16484), (1268, 16198), (2219, 9256), (2314, 8876), (2492, 8242), (2536, 8099), (4121, 4984), (4438, 4628)]