3989895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 8171520

約数和(自身を除く): 4181625

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 37, 39, 65, 79, 91, 105, 111, 185, 195, 237, 259, 273, 395, 455, 481, 553, 555, 777, 1027, 1185, 1295, 1365, 1443, 1659, 2405, 2765, 2923, 3081, 3367, 3885, 5135, 7189, 7215, 8295, 8769, 10101, 14615, 15405, 16835, 20461, 21567, 35945, 37999, 43845, 50505, 61383, 102305, 107835, 113997, 189995, 265993, 306915, 569985, 797979, 1329965, 3989895]

約数ペア:

[(1, 3989895), (3, 1329965), (5, 797979), (7, 569985), (13, 306915), (15, 265993), (21, 189995), (35, 113997), (37, 107835), (39, 102305), (65, 61383), (79, 50505), (91, 43845), (105, 37999), (111, 35945), (185, 21567), (195, 20461), (237, 16835), (259, 15405), (273, 14615), (395, 10101), (455, 8769), (481, 8295), (553, 7215), (555, 7189), (777, 5135), (1027, 3885), (1185, 3367), (1295, 3081), (1365, 2923), (1443, 2765), (1659, 2405)]