81580716

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^2$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 253818880

約数和(自身を除く): 172238164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 59, 62, 63, 84, 93, 108, 118, 124, 126, 177, 186, 189, 217, 236, 252, 279, 354, 372, 378, 413, 434, 531, 558, 651, 708, 756, 826, 837, 868, 1062, 1116, 1239, 1302, 1593, 1652, 1674, 1829, 1953, 2124, 2478, 2604, 3186, 3348, 3481, 3658, 3717, 3906, 4956, 5487, 5859, 6372, 6962, 7316, 7434, 7812, 10443, 10974, 11151, 11718, 12803, 13924, 14868, 16461, 20886, 21948, 22302, 23436, 24367, 25606, 31329, 32922, 38409, 41772, 44604, 48734, 49383, 51212, 62658, 65844, 73101, 76818, 93987, 97468, 98766, 107911, 115227, 125316, 146202, 153636, 187974, 197532, 215822, 219303, 230454, 292404, 323733, 345681, 375948, 431644, 438606, 460908, 647466, 657909, 691362, 755377, 877212, 971199, 1294932, 1315818, 1382724, 1510754, 1942398, 2266131, 2631636, 2913597, 3021508, 3884796, 4532262, 5827194, 6798393, 9064524, 11654388, 13596786, 20395179, 27193572, 40790358, 81580716]

約数ペア:

[(1, 81580716), (2, 40790358), (3, 27193572), (4, 20395179), (6, 13596786), (7, 11654388), (9, 9064524), (12, 6798393), (14, 5827194), (18, 4532262), (21, 3884796), (27, 3021508), (28, 2913597), (31, 2631636), (36, 2266131), (42, 1942398), (54, 1510754), (59, 1382724), (62, 1315818), (63, 1294932), (84, 971199), (93, 877212), (108, 755377), (118, 691362), (124, 657909), (126, 647466), (177, 460908), (186, 438606), (189, 431644), (217, 375948), (236, 345681), (252, 323733), (279, 292404), (354, 230454), (372, 219303), (378, 215822), (413, 197532), (434, 187974), (531, 153636), (558, 146202), (651, 125316), (708, 115227), (756, 107911), (826, 98766), (837, 97468), (868, 93987), (1062, 76818), (1116, 73101), (1239, 65844), (1302, 62658), (1593, 51212), (1652, 49383), (1674, 48734), (1829, 44604), (1953, 41772), (2124, 38409), (2478, 32922), (2604, 31329), (3186, 25606), (3348, 24367), (3481, 23436), (3658, 22302), (3717, 21948), (3906, 20886), (4956, 16461), (5487, 14868), (5859, 13924), (6372, 12803), (6962, 11718), (7316, 11151), (7434, 10974), (7812, 10443)]