71681976

素因数分解:

$2^3\times 3^3\times {\mathrm{281}}^1\times {\mathrm{1181}}^1$

素因数の和:1477

約数の個数: 64

約数和(自身を含む): 199994400

約数和(自身を除く): 128312424

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 281, 562, 843, 1124, 1181, 1686, 2248, 2362, 2529, 3372, 3543, 4724, 5058, 6744, 7086, 7587, 9448, 10116, 10629, 14172, 15174, 20232, 21258, 28344, 30348, 31887, 42516, 60696, 63774, 85032, 127548, 255096, 331861, 663722, 995583, 1327444, 1991166, 2654888, 2986749, 3982332, 5973498, 7964664, 8960247, 11946996, 17920494, 23893992, 35840988, 71681976]

約数ペア:

[(1, 71681976), (2, 35840988), (3, 23893992), (4, 17920494), (6, 11946996), (8, 8960247), (9, 7964664), (12, 5973498), (18, 3982332), (24, 2986749), (27, 2654888), (36, 1991166), (54, 1327444), (72, 995583), (108, 663722), (216, 331861), (281, 255096), (562, 127548), (843, 85032), (1124, 63774), (1181, 60696), (1686, 42516), (2248, 31887), (2362, 30348), (2529, 28344), (3372, 21258), (3543, 20232), (4724, 15174), (5058, 14172), (6744, 10629), (7086, 10116), (7587, 9448)]