81322860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 234118080

約数和(自身を除く): 152795220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 97, 157, 178, 194, 267, 291, 314, 356, 388, 445, 471, 485, 534, 582, 628, 785, 890, 942, 970, 1068, 1164, 1335, 1455, 1570, 1780, 1884, 1940, 2355, 2670, 2910, 3140, 4710, 5340, 5820, 8633, 9420, 13973, 15229, 17266, 25899, 27946, 30458, 34532, 41919, 43165, 45687, 51798, 55892, 60916, 69865, 76145, 83838, 86330, 91374, 103596, 129495, 139730, 152290, 167676, 172660, 182748, 209595, 228435, 258990, 279460, 304580, 419190, 456870, 517980, 838380, 913740, 1355381, 2710762, 4066143, 5421524, 6776905, 8132286, 13553810, 16264572, 20330715, 27107620, 40661430, 81322860]

約数ペア:

[(1, 81322860), (2, 40661430), (3, 27107620), (4, 20330715), (5, 16264572), (6, 13553810), (10, 8132286), (12, 6776905), (15, 5421524), (20, 4066143), (30, 2710762), (60, 1355381), (89, 913740), (97, 838380), (157, 517980), (178, 456870), (194, 419190), (267, 304580), (291, 279460), (314, 258990), (356, 228435), (388, 209595), (445, 182748), (471, 172660), (485, 167676), (534, 152290), (582, 139730), (628, 129495), (785, 103596), (890, 91374), (942, 86330), (970, 83838), (1068, 76145), (1164, 69865), (1335, 60916), (1455, 55892), (1570, 51798), (1780, 45687), (1884, 43165), (1940, 41919), (2355, 34532), (2670, 30458), (2910, 27946), (3140, 25899), (4710, 17266), (5340, 15229), (5820, 13973), (8633, 9420)]