81871722

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:497

約数の個数: 80

約数和(自身を含む): 196484640

約数和(自身を除く): 114612918

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 67, 81, 114, 134, 162, 171, 201, 342, 397, 402, 513, 603, 794, 1026, 1191, 1206, 1273, 1539, 1809, 2382, 2546, 3078, 3573, 3618, 3819, 5427, 7146, 7543, 7638, 10719, 10854, 11457, 15086, 21438, 22629, 22914, 26599, 32157, 34371, 45258, 53198, 64314, 67887, 68742, 79797, 103113, 135774, 159594, 203661, 206226, 239391, 407322, 478782, 505381, 610983, 718173, 1010762, 1221966, 1436346, 1516143, 2154519, 3032286, 4309038, 4548429, 9096858, 13645287, 27290574, 40935861, 81871722]

約数ペア:

[(1, 81871722), (2, 40935861), (3, 27290574), (6, 13645287), (9, 9096858), (18, 4548429), (19, 4309038), (27, 3032286), (38, 2154519), (54, 1516143), (57, 1436346), (67, 1221966), (81, 1010762), (114, 718173), (134, 610983), (162, 505381), (171, 478782), (201, 407322), (342, 239391), (397, 206226), (402, 203661), (513, 159594), (603, 135774), (794, 103113), (1026, 79797), (1191, 68742), (1206, 67887), (1273, 64314), (1539, 53198), (1809, 45258), (2382, 34371), (2546, 32157), (3078, 26599), (3573, 22914), (3618, 22629), (3819, 21438), (5427, 15086), (7146, 11457), (7543, 10854), (7638, 10719)]