30881487

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 23308593

約数列:

[1, 3, 7, 13, 21, 31, 39, 41, 89, 91, 93, 123, 217, 267, 273, 287, 403, 533, 623, 651, 861, 1157, 1209, 1271, 1599, 1869, 2759, 2821, 3471, 3649, 3731, 3813, 8099, 8277, 8463, 8897, 10947, 11193, 16523, 19313, 24297, 25543, 26691, 35867, 47437, 49569, 57939, 76629, 107601, 113119, 115661, 142311, 251069, 332059, 339357, 346983, 753207, 791833, 996177, 1470547, 2375499, 4411641, 10293829, 30881487]

約数ペア:

[(1, 30881487), (3, 10293829), (7, 4411641), (13, 2375499), (21, 1470547), (31, 996177), (39, 791833), (41, 753207), (89, 346983), (91, 339357), (93, 332059), (123, 251069), (217, 142311), (267, 115661), (273, 113119), (287, 107601), (403, 76629), (533, 57939), (623, 49569), (651, 47437), (861, 35867), (1157, 26691), (1209, 25543), (1271, 24297), (1599, 19313), (1869, 16523), (2759, 11193), (2821, 10947), (3471, 8897), (3649, 8463), (3731, 8277), (3813, 8099)]