81218196

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{25349}}^1$

素因数の和:25448

約数の個数: 36

約数和(自身を含む): 207616500

約数和(自身を除く): 126398304

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 25349, 50698, 76047, 101396, 152094, 228141, 304188, 456282, 912564, 2256061, 4512122, 6768183, 9024244, 13536366, 20304549, 27072732, 40609098, 81218196]

約数ペア:

[(1, 81218196), (2, 40609098), (3, 27072732), (4, 20304549), (6, 13536366), (9, 9024244), (12, 6768183), (18, 4512122), (36, 2256061), (89, 912564), (178, 456282), (267, 304188), (356, 228141), (534, 152094), (801, 101396), (1068, 76047), (1602, 50698), (3204, 25349)]