20528664

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3463}}^1$

素因数の和:3504

約数の個数: 64

約数和(自身を含む): 58195200

約数和(自身を除く): 37666536

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 3463, 5928, 6926, 10389, 13852, 20778, 27704, 41556, 45019, 65797, 83112, 90038, 131594, 135057, 180076, 197391, 263188, 270114, 360152, 394782, 526376, 540228, 789564, 855361, 1080456, 1579128, 1710722, 2566083, 3421444, 5132166, 6842888, 10264332, 20528664]

約数ペア:

[(1, 20528664), (2, 10264332), (3, 6842888), (4, 5132166), (6, 3421444), (8, 2566083), (12, 1710722), (13, 1579128), (19, 1080456), (24, 855361), (26, 789564), (38, 540228), (39, 526376), (52, 394782), (57, 360152), (76, 270114), (78, 263188), (104, 197391), (114, 180076), (152, 135057), (156, 131594), (228, 90038), (247, 83112), (312, 65797), (456, 45019), (494, 41556), (741, 27704), (988, 20778), (1482, 13852), (1976, 10389), (2964, 6926), (3463, 5928)]