81644862

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:745

約数の個数: 64

約数和(自身を含む): 187488000

約数和(自身を除く): 105843138

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 89, 114, 178, 247, 267, 494, 534, 619, 741, 1157, 1238, 1482, 1691, 1857, 2314, 3382, 3471, 3714, 5073, 6942, 8047, 10146, 11761, 16094, 21983, 23522, 24141, 35283, 43966, 48282, 55091, 65949, 70566, 110182, 131898, 152893, 165273, 305786, 330546, 458679, 716183, 917358, 1046729, 1432366, 2093458, 2148549, 3140187, 4297098, 6280374, 13607477, 27214954, 40822431, 81644862]

約数ペア:

[(1, 81644862), (2, 40822431), (3, 27214954), (6, 13607477), (13, 6280374), (19, 4297098), (26, 3140187), (38, 2148549), (39, 2093458), (57, 1432366), (78, 1046729), (89, 917358), (114, 716183), (178, 458679), (247, 330546), (267, 305786), (494, 165273), (534, 152893), (619, 131898), (741, 110182), (1157, 70566), (1238, 65949), (1482, 55091), (1691, 48282), (1857, 43966), (2314, 35283), (3382, 24141), (3471, 23522), (3714, 21983), (5073, 16094), (6942, 11761), (8047, 10146)]