81584964

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 213071040

約数和(自身を除く): 131486076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 71, 118, 142, 177, 213, 236, 284, 354, 426, 531, 541, 639, 708, 852, 1062, 1082, 1278, 1623, 2124, 2164, 2556, 3246, 4189, 4869, 6492, 8378, 9738, 12567, 16756, 19476, 25134, 31919, 37701, 38411, 50268, 63838, 75402, 76822, 95757, 115233, 127676, 150804, 153644, 191514, 230466, 287271, 345699, 383028, 460932, 574542, 691398, 1149084, 1382796, 2266249, 4532498, 6798747, 9064996, 13597494, 20396241, 27194988, 40792482, 81584964]

約数ペア:

[(1, 81584964), (2, 40792482), (3, 27194988), (4, 20396241), (6, 13597494), (9, 9064996), (12, 6798747), (18, 4532498), (36, 2266249), (59, 1382796), (71, 1149084), (118, 691398), (142, 574542), (177, 460932), (213, 383028), (236, 345699), (284, 287271), (354, 230466), (426, 191514), (531, 153644), (541, 150804), (639, 127676), (708, 115233), (852, 95757), (1062, 76822), (1082, 75402), (1278, 63838), (1623, 50268), (2124, 38411), (2164, 37701), (2556, 31919), (3246, 25134), (4189, 19476), (4869, 16756), (6492, 12567), (8378, 9738)]