78481624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 164052000

約数和(自身を除く): 85570376

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 89, 104, 122, 139, 178, 244, 278, 356, 488, 556, 712, 793, 1112, 1157, 1586, 1807, 2314, 3172, 3614, 4628, 5429, 6344, 7228, 8479, 9256, 10858, 12371, 14456, 16958, 21716, 24742, 33916, 43432, 49484, 67832, 70577, 98968, 110227, 141154, 160823, 220454, 282308, 321646, 440908, 564616, 643292, 754631, 881816, 1286584, 1509262, 3018524, 6037048, 9810203, 19620406, 39240812, 78481624]

約数ペア:

[(1, 78481624), (2, 39240812), (4, 19620406), (8, 9810203), (13, 6037048), (26, 3018524), (52, 1509262), (61, 1286584), (89, 881816), (104, 754631), (122, 643292), (139, 564616), (178, 440908), (244, 321646), (278, 282308), (356, 220454), (488, 160823), (556, 141154), (712, 110227), (793, 98968), (1112, 70577), (1157, 67832), (1586, 49484), (1807, 43432), (2314, 33916), (3172, 24742), (3614, 21716), (4628, 16958), (5429, 14456), (6344, 12371), (7228, 10858), (8479, 9256)]