81807408

素因数分解:

$2^4\times 3^5\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:473

約数の個数: 120

約数和(自身を含む): 242515728

約数和(自身を除く): 160708320

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 53, 54, 72, 81, 106, 108, 144, 159, 162, 212, 216, 243, 318, 324, 397, 424, 432, 477, 486, 636, 648, 794, 848, 954, 972, 1191, 1272, 1296, 1431, 1588, 1908, 1944, 2382, 2544, 2862, 3176, 3573, 3816, 3888, 4293, 4764, 5724, 6352, 7146, 7632, 8586, 9528, 10719, 11448, 12879, 14292, 17172, 19056, 21041, 21438, 22896, 25758, 28584, 32157, 34344, 42082, 42876, 51516, 57168, 63123, 64314, 68688, 84164, 85752, 96471, 103032, 126246, 128628, 168328, 171504, 189369, 192942, 206064, 252492, 257256, 336656, 378738, 385884, 504984, 514512, 568107, 757476, 771768, 1009968, 1136214, 1514952, 1543536, 1704321, 2272428, 3029904, 3408642, 4544856, 5112963, 6817284, 9089712, 10225926, 13634568, 20451852, 27269136, 40903704, 81807408]

約数ペア:

[(1, 81807408), (2, 40903704), (3, 27269136), (4, 20451852), (6, 13634568), (8, 10225926), (9, 9089712), (12, 6817284), (16, 5112963), (18, 4544856), (24, 3408642), (27, 3029904), (36, 2272428), (48, 1704321), (53, 1543536), (54, 1514952), (72, 1136214), (81, 1009968), (106, 771768), (108, 757476), (144, 568107), (159, 514512), (162, 504984), (212, 385884), (216, 378738), (243, 336656), (318, 257256), (324, 252492), (397, 206064), (424, 192942), (432, 189369), (477, 171504), (486, 168328), (636, 128628), (648, 126246), (794, 103032), (848, 96471), (954, 85752), (972, 84164), (1191, 68688), (1272, 64314), (1296, 63123), (1431, 57168), (1588, 51516), (1908, 42876), (1944, 42082), (2382, 34344), (2544, 32157), (2862, 28584), (3176, 25758), (3573, 22896), (3816, 21438), (3888, 21041), (4293, 19056), (4764, 17172), (5724, 14292), (6352, 12879), (7146, 11448), (7632, 10719), (8586, 9528)]