81515028

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{883}}^1$

素因数の和:1061

約数の個数: 72

約数和(自身を含む): 222916512

約数和(自身を除く): 141401484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 157, 196, 294, 314, 471, 588, 628, 883, 942, 1099, 1766, 1884, 2198, 2649, 3297, 3532, 4396, 5298, 6181, 6594, 7693, 10596, 12362, 13188, 15386, 18543, 23079, 24724, 30772, 37086, 43267, 46158, 74172, 86534, 92316, 129801, 138631, 173068, 259602, 277262, 415893, 519204, 554524, 831786, 970417, 1663572, 1940834, 2911251, 3881668, 5822502, 6792919, 11645004, 13585838, 20378757, 27171676, 40757514, 81515028]

約数ペア:

[(1, 81515028), (2, 40757514), (3, 27171676), (4, 20378757), (6, 13585838), (7, 11645004), (12, 6792919), (14, 5822502), (21, 3881668), (28, 2911251), (42, 1940834), (49, 1663572), (84, 970417), (98, 831786), (147, 554524), (157, 519204), (196, 415893), (294, 277262), (314, 259602), (471, 173068), (588, 138631), (628, 129801), (883, 92316), (942, 86534), (1099, 74172), (1766, 46158), (1884, 43267), (2198, 37086), (2649, 30772), (3297, 24724), (3532, 23079), (4396, 18543), (5298, 15386), (6181, 13188), (6594, 12362), (7693, 10596)]